Seated dumbbell/smith/military press

[RJ2208]

When you guys do seated dumbbell and smith machine/military press, do you adjust the seat at exactly a 90 degree angle or just a little bit further back so you are leaning back a tiny bit? I see people doing it differently, figured I would ask what is most effective

[Mr VW]

I like doing them standing but lately I've been doing them seated and I have leaned just a bit back. I do this because when I put it at a 90 degree angle I feel that my lower back is being put under tremendous stress and it just doesn't feel right. Thats just me though. I really do prefer standing though.

[JMike]

We have a seated press bench which is non adjustable and set at 90 degrees. It's a personal prefrence I'd imagine with less of an inlcine employing more of the chest. Anyone back this up?

I don't use a seat back and sit upright. Most effective for everyone? Don't know, but this works best for me.

I would say that for overhead pressing, the back being upright would be better than inclined. If you incline, you are moving more to the anterior delts.

[RJ2208]

Yea I never knew really what the "proper" way was, I guess it makes most sense to keep the back pad straight as possible, but I definately notice that I do less weight then if I were to go one notch back on the incline, but I guess thats when it starts to include a tiny bit of upper chest? anyways, for those of you who do max-ot when do you increase the weight? when you are able to do a set of 6 good form reps or, when you do all 2 or 3 of your sets with 6 good reps?