Okay, there seems to be a bit of a confusion of terminology here...
Pressured breathing for me are those tiny breaths you see women giving birth do, or people who don't know how to apply strength and are gassed and you tell them to breath.
What I think you are talking about is "controlled breathing" where I try to breath into my belly button and at the same time flex my abs against this motion, this will tighten my torso and lock my spine into place. THAT I do.
Now there were to issues, Where do I inhale and where do I exhale on the lift?
Here I have two options in my mind. (lets do it on the example of the squat)
1) I inhale, go down, and while I come up I slowly and deliberately start to exhale with most of the breathing out process being done when I am back at my starting position. Rinse and repeat.
2) I inhale, do the entire move (down and up again) then I exhale.
I am doing number one right now.
The other issue I asked you russ, how will addressing my set of 5 as 5 sets of 1 change in terms of pause between reps and how would this impact my strength development?
I will try to get a video on Wednesday because then I will do Squat, Press and Dead on the same day... Lets so how that will go.