Has anyone else experienced 2nd gear slippage? I have a customer with 2 cars, both have 727's and both are flaring up to the rev limiter when they shift to 2nd. Both have Griner transbrakes and we never had this problem with alum drums, we thought going to a steel drum the parts would last longer. At first I had a red lined solid band and noticed black heat rings around the drum and bands so I just tried a Kevlar solid band and the slippage is worse, help! ps trans fluid is type F.