I had already responded with my slight fall in the saddle while practicing a foot or so above the ground. But reading all of these reminded me of why I moved to saddle. I had a summit viper, only used it twice, but one of the times I just shifted my weight a little bit and that was enough to get the seat top section to drop an inch or so. Scared the hell out of me.
I used to have a super heavy gorilla climber, never had that happen with it. Besides the summit dropping like that, and the noise it felt like those things made, once I found saddles I was all in. I mostly SRT, but I'm also adding in 2TC, and I've never felt safer in a tree. Especially as I'm a bigger guy