Because of my lack of depth, the Ass Servant is only just all in right way up and tends to pop back out too easily. I thought if I could do it backwards it might stay in better, but attempt 1 was a fail! I will definately try it again though. Diameter wise it's just a nice size for me at moment, I can get it in first plug of a session without any help now. The stool was pretty useless for this as it went too far through the slot!
I have the Ass Servant and I have that exact stool too. I like my ass servant but it's a little small now. I will take backwards next chance I get and post the video! Good idea. I take a lot of my toys backwards, don't know why I've never taken the AS this way.
Just for fun! It took a lot of mucking around to start with and balancing it on its top wasn't easy, but persistance wins! Was a bit pissed about it falling out so soon though!