25min. endurance little H-quad overview

Here's my frame , and my setup is:
Motors Hextronik 24gr 1300kv
Props 8x3.8 SF
ESCs custom built ~14A ,~9gr each, fits inside 12mm tube
Zippy Compact 3s 3700mAh battery
Naze32, 3A Bec
Hawkeye UHF with DIY Sander style monopole
Boscam 5.8ghz 200mw Vtx with DIY video filter
Pixim cam and Remzibi OSD with GPS
AUW 715gr and she's more nippy then when it was 800gr, but I didn't expect that much more flight time, had a hope for only an extra minute. Please note, that batteries are nearly new (3-4 cycles) and I was testing with fully charged 12.6v battery. On top if that there's a big difference between hovering in front of your nose and actual flying, but still, this time in the air I will definitely enjoy:)