Sounds like your set up is correct. If you have a chance take a video of the full set up, and a rep or two. Be sure that as you receive your lift out that it is taken all the way out to the spot you want to bench at. You want to keep from having to work too much on the rotation on the lift out as that will cause you to flatten and lose some lat. There is a fine line between control and speed. You have to find what area will work for you. A far as keeping the lats tight, just make sure the bar is pushed out all the way to where you want it. Get a big breath of air at the top before you descend, and hold it. Next be sure that you are squeezing your shoulder blades together through the lift. If your lats are not sore the day after benching, you are not using them fully in my opinion. Obviously this is all meant to be done for one rep. If you had to do more reps, then you will need to breath ha ha.
Best meet lifts: 1040squat, 730 bench, 730 deadlift
Best total: 1040-680-730=2450
"This is about strength, not getting a 10.0 form score from the Russian judge" Steve Shaw