VDOP,
"The bar should end where it begins."
I used to believe, as many others, that your bench stroke should be as short as possible and it was a major factor in moving heavy weights. However, I now believe it is more important to maximize body-positioning. This is where the MM Crew is ahead of the game. Increasing the arch by tucking the feet under the torso and setting-up as high on the traps as possible, tucking the elbows, bar touch on the upper abs all contribute to maximizing the bodies ability to move heavy weight. I believe the reduction in bench stroke is a factor as well but the overall benefits are minimal in comparison.
I believe that where the weight is set before a downward bench stroke it is the position that the body is most comfortable with in holding the heavy weight. This position is most advantageous for the body. For most people I have seen bench over the years this position is over the upper chest (between the nipples and the chin). This is especially true when benching raw. When a bench shirt is used, the added support of the shirt and it's design allows a lifter to set a weight lower. I agree in setting the bar as low as possible but not at the expense of exploiting the bodies natural, strongest position. My thinking is simple. Since this position is the most comfortable to the body in holding the weight, it is the place where the bench stroke should begin and ideally end.
Check some video of yourself benching and note where you set the bar. It may be higher than you actually realize. I noted this about my bench stroke a few months ago and I stopped trying to force the bar so low. My numbers are greatly improved and I feel a lot more comfortable.
Speedwork. It's funny you should mention speedwork. Bench speedwork is the first thing I dropped from my Westside split a year and a half ago. The only time I did bench speedwork in that time is when I trained in Tulsa with the Okie and KC crews (once or twice I think). All speedwork did for me was give me chronic tendonitis. I always bench with speed on my mind and my speed is better than ever. Speed benching may work for most but it is not a technique I use. I do not agree with Louie's contention that ME and DE work can NOT be performed in the same workout. (Blasphemy!) DE training to me means pushing the bar as fast as you can whenever benching and this is what I do.
I really limit my band and chain use as well. I think bands and chains are the best thing since sliced bread but I have to be very careful when using them. It probably has something to do with me being an old man. (Ha, ha!)
Good luck with your training and your upcoming meet. I know you will hit PR's. PM me if I can help. My training is significantly different but I am getting great results.