My first tickle session was during my uni days and the victim was an ex gf of mine, can't remember exactly when but id say around 2009-2010 timeframe. This is when I realized Yaqi videos were pretty good as my ex gf reactions were similar to his models, esp the twisting and turning when being tickled in the rib area. She ended up being my ticklee for the next few years. Issue is that at the time, I was on the dorm, so I had to coordinate when my roommate was out etc etc and I also did not have great bondage equipments that would last for a long session. So my sessions back then were pretty short, mostly ranging 5 to 15 mins and sometimes lasting just a few mins when my bondage equipment would give up prematurely.
Fast forward to now, my current partner is not very ticklish. Not ticklish on the feet , armpits or ribs. Mostly ticklish on the neck and ears area so these two are my only areas of focus. She runs out of juice pretty fast, i.e loses sensitivity. My longest session with her is probably about 40 mins, and i'd say most of it being teasing and foreplay since she is not that ticklish. So I currenly have experience with long sessions, but not with a very ticklish ticklee. I have no idea how a ticklish ticklee would react on long sessions.
Based on the comment above, it looks like both producers include some fake acting etc. So i'd rephrase my questions, which one of them would offer the most real intense sessions ? i.e the models are genuinely exhausted at the end ( even tho there was some acting etc ). On another note, I did like some of the following producers produce a descent video once in a while : LS productions , ticklehotness , italians tickling, ticklish girls