beyond ..
I had the same problem of deciding on which to go for..
at the earlier stage i was into the SC because of its torque....then later on after reading alot from the net , askin around like you are doing now, I got no regrets for my BT20V...
one advice..too much torque'in on the SC can damage it..and plus u got to take care if SC as if it is your wife....
of better than your wife...feed her..talk to her...ekekekeke...
sleep with her...ekekee..
in a nut shell a BT is highly recon ...
take care dude..