I ran a test today with and without the Smarty.
I headed down to the river by way of my dad's house. So, there was street level stuff from 25mph though 45 mph and then the hiway stuff of 50 mph through 70 mph.
On the way down, I ran the Smarty in it's usual configuration on level 3, TST set to level zero.
There was a tendency for the trans to hunt around 28-32 mph. It got annoying, but in the area I was in I had to drive the speed of the sleepyheads in front of me. After a while of this, I found that pulling the lever into 2nd, the hunting stopped. This was the only way it would cease and I could repeat the hunt at will. Lockup still came in pretty late in the town driving, but was better than unloaded as I had the boat out back. Freeway travel was fine except for the double "bump" going into OD and locking up. It felt like it was doing both at once or trying to hit 2 gears at once. It's always done it with the Catcher program, but it's still wierd. To compensate, I lift the throttle completely, hit the OD button and roll in easy. OD lock up. there was minimal surge with the cruise.
For the return trip, I ran a loaner EZ and no Smarty. Been a while since I had an Edge product in the truck. Everything worked fine. Trans shifted normally and the hunting was gone. Also, I hit lockup much sooner in drive. I would most likely have to re-adjust my APPS to the correct setting if I were to run that box everday. The EZ had way more timing noise than the Smarty. Power felt about the same. But, there was no power drop going into OD as with the Smarty. Also, the double "bump" thing going into OD was gone. No surge with cruise.
My guesses as to what are going on relate completely to throttle position. The more it has at a given fueling level, the better. Some of the guys on the TDR have had some great ideas. One of which would be a voltage modifier. I have no idea what the correct technical term is, but the way I understand it, we could fool the PCM into seeing a higher voltage than is really there, bringing lockup in earlier with the Smarty. If that works, I would actually be able to use a Catcher level. I am not sure if this will help with the cruise surge or not.
I don't know how that plays out for pressures in the trans at all. And that'll all have to be checked. But may be a work around for some of us.
Dave