Well just recieved my spartan yesterday... took it out of the box and put it on its stand.... Now im going to purchase some batterys tomarrow and I was looking for some insight on traxxas lipo 3c 5000 mah vs 8400 mah.... looks like the same power and that it would just run longer? u think the extra 9.4 oz or 18.8oz combined extra weight vs 5000mah would really slow the boat down any? im also going to use them in my slash..
also what kind of run times should I expect? 5000 vs 8400?