I have floureon 3s 35c 5500mah and 2s 40c 6200mah. Seem to be ok. I think they drop voltage pretty bad as i get to end of pack. With higher amp drawing system. Ive had LVC kick in till the pack catches back up. I love them for my scale rigs.
I run venom 2s 5000 mah 30c in my BLX awesome batteries not good on the wallet..... I ordered 2 floureon 2s 5000mah 30c I will see how I like those when they come in.... I'm thinking about ordering the spc brand a lot of people seem to like those,