Brace yourselves; a long post follows!
I've had the 2B kit for about a few months now and I think I have finally experimented enough to post a reply in this thread.
I guess I should preface this by saying I still haven't had a HFO, but I have gotten damn close. After about a thirty minute session, I get all sweaty and and my body involuntarily shakes with pleasure. Given another thirty seconds to a minute, I'd probably have the most intense orgasm I've ever experienced. But I can't resist. In that final minute I have the strongest, most animalistic urge to cum
right NOW. Long story short, I inevitably hand finish. I'm a weak man, I know.
I bought the 2B pro pack when it was on sale around New Years. Having just spent ~400$ on the box, I was not able to shell out more for proper pads or insertables; life as a full time student sucks. So, I ended up made my own electrodes out of stuff I had around the house.
I used common copper electrical wire, typically used in houses, to make my penis ring like this:
http://www.dhresource.com/0x0s/f2-albu- ... k-ring.jpg, except the urethral plug doesn't enter the urethra, it just arcs over the head of my penis, and I made a little 4mm coil to attach to the banana connector. The wire typically comes in long flat yellow lengths with two insulated wires and a third bare wire for ground inside. Each of the three wires is very stiff, so they hold their shape, yet are malleable enough to form into just about any shape I need.The wire looks like this:
http://i.ebayimg.com/images/g/nOgAAOSwT ... -l1600.jpg. I'll separate the three wire and just use one at a time.
I also made a conductive pad that looks like this:
http://www.shop-equip.com/media/catalog ... -cf049.jpg. I know it is an image of a plastic lid, but the shape is approximately correct. The raised walls were made of rolled up paper towels taped to a multilayered card-stock base. Aluminum foil was taped to the card-stock base and connected to another 4mm copper wire coil to attach to the other banana connector. I put some conductive cream, which I'll describe later, in the center on the aluminum foil and BOOM, a consistently conductive pad was born!
I made some cheap, sticky, and long lasting conductive cream by mixing together a few tablespoons of lotion with a tablespoon of water and about a teaspoon of fine table salt. A splash of rubbing alcohol was added to help fight bacteria. Make sure to put some cream wherever there is metal touching your skin or else it will feel like it is burning. I hope it goes without saying that this is for external use only.I'll apply a bit of conductive cream to my frenulum, slip on the DIY ring, add a dab of conductive cream to my DIY pad, and place it on my perineum. Then I'm off to the races. Unfortunately have to stay sitting down because the DIY pad is not adhesive.
I really only use the pulse and the continuous modes on the 2B as of right now. The others either don't feel right or are too scary for me.
For the pulse mode, I try to mach the pulse rate to that my perineum convulses when I cum normally. A bit slower or faster than that can also be fun to experiment with. I found a rate of 72 is right where I need to be. The spikiness will determine how much stimulation the DIY ring will provide to the head of your penis. I like somewhere around 70 or 80. I think you start feeling the pulses at about 30% power when the pulse rate is set to 70. The required power level to feel anything goes up as you increase the pulse rate and decreases as you decrease the pulse rate. I can get up to about 50% power by the end of a session.
For the continuous mode, I also like the spikiness to be around 70 or 80. I think you start to feel simulation at 9% power in this mode. After a minute or two I can increase the power to 19%, which is just bearable. After a while I'll bump up the power to 25 or 30% for a second or two before dropping back down. After teasing for a few minutes I can get up to 30% constantly. The issue i have with continuous mode is that it can feel too good, so good it hurts.
For those of you who didn't read the instructions first (I didn't), the Adjust knob changes the pulse rate. If you press and hold the Select button and use the Adjust knob at the same time, it changes the spikiness. You really should spend some time experimenting with different combinations of values for the pulse rate and spikiness, it's free!
It is also important to be in the proper mindset to have a HFO. I found some tease dances by Madison Deck online recently that I have REALLY been enjoying. I also like some Cock Heros, which can be found on PornHub, but it is hard to find one with nice music AND women I think are attractive. #FirstWorldProblems
I don't have any pictures of my setup because they are not perfect, ie the DIY ring is not perfectly circular and it has slightly oxidized now. If anyone needs them for reference, I can make a new shiny set of electrodes and post a photo of those.
I think that is everything I have to offer right now. I imagine everyone will like something slightly different, so my recommendations may do nothing for you, but at least provide a place to start. Good luck OP!