The bent graduate is how I achieved my first g-spot orgasm.
. It's still one of my favorite toys and the most reliable way for me to have a g-spot O.
I completely hear what you're saying about the fast thrusting! My first option is to switch to the other hand then back again, sometimes switching up to 3 or 4 times. I'm lucky to be somewhat ambidextrous so I'm able to thrust just as hard and fast with my non-dominant hand.
If I still haven't orgasmed, I slow back down - but not so much that I lose ground - and usually go back to the motions I was using before the thrusting. Rocking motions (towards my feet then back towards my head), rubbing the head of the toy against my clit, etc. until I feel the O building higher then back to thrusting. Sometimes I do have to do this a couple of times but since I've learned how to give myself g-spot orgasms with this toy there have only been a handful of times in nearly two years that I haven't been able to orgasm with it.