2 NiMh in series

It's not shifting into second. Now that you mention it, she also fails to shift into second when I use the 4s Lipo pack. This is extremely weird since it runs fast as crap with the 4S, but I never heard her shift into second.

I'm using the standard pinion spur gear with standard clutch bell (38 / 15)

I'm not using the center diff, but using the electri-clutch that came in the Teckno conversion kit.

On an unrelated note, your BL 8eight is beyond sweet. That is going to be my next car, but the wife said I have to wait until I get back from Iraq.

Back to the subject: thank you for your time and effort in helping me figure out my problem.