Ive definitely considered flushing the transmission and kept telling myself I would but now it seems I may be at the point where it could cause more hurt than help. 218kmiles on factory fluid and it still whips shifts with the corvette servo. Fear is that i could stir up so many particles i could end up clogging the valve body once its flushed and put back together. Have you added any upgraders, bigger cooler or corvette servo? Mine shifts so firm still its amazing. Plan on heading out to SC to pick up a new boat then pulling it all the way back then taking it 10hrs the other way to brostock and back so that will be the breaking point im guessing if it decides to start to slip that will sure create some heat.