started with the modified mgx–still slow going–brought the p-tab contact point a little farther away from the stem–still where i was a week or so ago–some ass buzzing and a few dives in the ass
tried the helix, unmodified, with a little more success in that i got what i call ass pulses instead of the buzzing–the pulses are more enjoyable but harder for me to maintain–had very little considering the amount of time i used