6s 3000 vs 6s 5000 zippy

[superek4]

I am racing my CRT with 6s 5000 Mah now I decide to lighten my CRT as my race is only 10mins.

My heavy CRT is heavy but stable. Is there any advantage if I change my batt to a lighter one beside lighter?

My 6s 5000mah setup gv me a 200amp per min. So the 3000mah should able to last 15mins.

U guys think it's a good idea to reduce abt 260grams? Vs stability?