I've pretty much been breathing evenly throughout each rep. Thanks for the lesson and the confirmation of what seemed right to me.

The time before last, I took a small notebook and wrote down all of my weight amounts and seat settings for the machines. Of course that resulted in a list of exactly which machines I have been using. It makes my workout go more smoothly and I like the consistency it allows. The funny thing is, according to my book, I needed higher weights last time I went. The previous amounts seemed too light. Either that shows great progress or last Monday was an off night. The latter is actually quite possible, as I did kind of get off to a bad start. Also, I decided to work out my weaker, upper body first after I had such a hard time on Monday. Something was different. We'll go tomorrow as well and I'll see then.