well being the crazy person that i am i thought i would get another larger capacity cooler to throw on the bonneville since the small one i had on there (that'* fit for like a neon or civic or something) was providing abysmal results.
so i went and bought the largest size one and now i have 3 coolers running in series. radiator --> small cooler --> big cooler. you can *feel* the difference with your hands... the supply pipe could almost burn your hand while the return pipe would just be slightly uncomfortably warm. the transmission noticeably shifts better and that TCC slip thing i had mentioned before seems to be gone.
although....this is a little overkill.
i have both coolers situated in front of the fans (in between the condenser coil and radiator) so if i desire extra cooling i can just turn on the A/C which will bump up the fans an additional speed.
i didn't even have to really mount the large cooler since it just rests on the bottom tray and is the perfect size to fully expose itself in front of the fan. the small one is held on by a quick-tie thing.
i'll keep everyone posted to see if the TCC shake comes back.