I don’t know why, but Ahe’s script for Noodledude’s “I want your cum” works, usually near the end of Act 2, ready or not.
https://discuss.eroscripts.com/t/noodledude-i-want-your-cum-stages-1-2-3/82545
The two “Finish Him - Josie Jo” scripts I did work well, too.
Cock Hero - ADSR has worked since before getting an OSR2
https://discuss.eroscripts.com/t/swzbhmv-18-ngon-sfx-hmv-suggested-simple-hardcore-scripts/159988 Is a god damn masterpiece.
Nice variety of suggestions from everyone, hope it has driven some traffic around and inspired some experimentation.
Thanks for all the replies 
Here’s some of my work that I think is good to end a session on.
The top being the most recent work I’ve done. 
PornHub Games S01E02 RideEm - Hosted by Asa Akira & Lauren Philips
Mayohiga no Onee-san The Animation - Episode 1
[Flim13] - My Friend’s Mom Movie Eng Sub
I continually go back to this if I need to finish fast. Only script I bust out the Handy for, it just doesn’t work as well with OSR2+ and a Fleshlight.
https://discuss.eroscripts.com/t/cock-hero-french-touch-by-megamasha/73791
The edging section near the end (~69 minutes in) is ol’ reliable for me
https://discuss.eroscripts.com/t/hmv-paizuri-madness-suggested-simple-script/75673
very simple, but skipping to ~6 minutes in and playing just the next minute does the trick if I’m close
https://discuss.eroscripts.com/t/croove-blue-archive-hanako-schale-duty-hq-script/143563
Just love the pacing for this one
https://discuss.eroscripts.com/t/random-sfm-hmvs-vol-1-a-collection-of-17-hmv-scripts/88897#p-214297-hypnocurrency-asari-gooning-by-jjulez-10
the transition into the finish is very good. Basic stroke buildup throughout to a good finish that changes it up