Funny that I should run into this post just as I'm experimenting with pullovers. I looked for a video of them and each person seems to do them different.
Is this one of those things like rows where you just gotta keep trying things until you feel in the right place and start getting results or do you know of a good vid for them?
I saw that comment on overhead work working on the long head which is the meat higher up on the back of your upper arm whereas pushing/extending horizontally will build/strengthen the portion close to your elbow. I actually helped improve my joint health around my shoulder area by making sure I do work for the long head.
Lets not forget partial movements! With boards for bench pressing, I can really load it up without destroying my elbows. Partials for OH press are good too. The OH partials also help with shoulder and upper back stability too because of the extra weight you're holding up.
Yes, the ROM is shorter. But that doesn't mean the TUT has to be shorter. You just pick about the same weight you would for full range benching, but do some more reps. The more boards, the more reps per set than usual. It might look like more volume, but it should be about the same tut. Of course, this is bad advice if you're looking for an overload effect rather than a way of isolating the tris with a heavier exercise for growth.
You've got to give this type of training the same respect you give the full range movements. It isn't just something you're going to throw in at the tail end of the session to pump your arms up.