Keep going you will get there, I bought the biggest baddest control I could find for my little titan so that in the future if I wanted to step up to a bigger boat they could share the same control...same with my lipo packs my small boat runs 2 5s packs in parallel and the bigger challanger will run the same packs in series for 10s and that saves me a grand on my next boat! Try buying your packs in sets of 2 same mah, also...Ask for deals or discounts it works...if one guy says no ask another and another (phone calls work best) don't give up, I want to see that apache soon ok..lol.