DTT 93 is my favorite!
I personally went with the DTT 93% TC for my Ram after considering MY driving style, the specific application(s) for MY Ram, and MY personal seat-of-the-pants observations between it and their 91% TC.
The 91% TC is an all around better TC, exhibiting better driving manors however, I wanted to live on the edge... and I'm still glad I made the decision I did (in mid January).
HOWEVER, with the increased efficiency goes some idiosyncrasies; once the ATF fully warms to at least normal operating temperature (I'm using Amsoil Universal ATF+4) the downshifts when coasting up to a stop light can seem almost like someone is bumping into your rear bumper, and going into Park can get pretty nasty. I have changed the way I place my gear selector into the Park postition; I now place it in Neutral, shut off the engine and place it in Park... works much better (no noise or harsh operation). Additionally, you don't want to sit (i. e. , NOT MOVING AT ALL) IDLING in gridlock type traffic (in gear), as the trans. temps will climb pretty high unless you place it in Neutral. If you are moving AT ALL transmission temps. are reduced to unbelievable levels. So, as you can see there is no free lunch although, I wouldn't have it any other way!
In addition to the general DTT TC recommendations Shooter posted, Bill told me there are numerous other things to consider when properly selecting a TC, that's why DTT prepares a profile on you and your Ram based on your (hopefully) honest input. The more accurate your input, the better match they can make with their TC and custom VB.
Remember, this is not an off the rack kind of deal!
Awesome TC design Bill!
..... and even now after the "honeymoon" is over, I'm just as excited about my DTT TC and VB combination as the day I had it installed!