ok guys 1 more day to go till the nationals!!! I finally was able to install ubec and man my esc doesnt even heat up anymore plus have a fan over it! My only problem is that pinion and and grub screw loosens up after one run. i already put some locktight and still lost a pinion and grub screw. Also another problem is the hv maxx that im up against has the same top speed as i do his setup is 72/15 and im 66/18 foor gearing but i only have 12 cell nimh 3300mah 14.4 and he has 2s 4000mah 14.8. so what u guys think should i leave as is for the race this weekend?