After reading this I am wondering if I should use the stock tranny cooler then use the B&M external cooler as well that I am currently running? Currently I am only using the external as I installed it with I had about 150k miles on my original radiator(which I am still using currently). But also got a new denso radiator to install waiting in the garage. My plan was to use the new radiator with bypassing the radiator cooler and just use the external I currently because its already installed. So should I go back to the original cooler now or use both at the same time? If it matters, I live in southern California so the temps here are always pretty good and I don't tow with it as its just my daily driver when driving my kids around town, occasionally drive to the mountains/camping/etc. Any help/opinions guys? Thanks.