6.5T vs 13T. What difference will I notice?
 

I've been using a 6.5 T motor in my B4 for bashing. I've now got a 13.5T motor too (to use at my local club when I go).

Can someone explain if there are going to be any benefits if I start using the 13.5 T for bashing. Is it just that going to be slower, but the battery last longer or what?