To that end, I mounted an Actro 32-3 in the nose with a 17X12 APC electric prop and connected a Jeti 77opto plus ESC to my two TP 5S4P 5300 mah packs in series (10cell lipo). The esc is rated for "up to 10 cell lipo".
Perhaps there is something I have missed. You state you have two (2) packs, each apparently a TP 5S4P 5300 mAh pack. As I figure it, one of those two packs would have have 20 cells in it: 5 cells connected in series, and 4 of these series connected to each other in parallel, for a total of 20 cells. Possibly this is a typo and you meant you had two packs, each being a 5S1P 5300 mAh pack. When tied together in parallel, these two packs would provide a total of 10 cells, in a configuration of 5S2P. Asuming that to be the case, then each 5S1P pack is capable of 42 amps delivery if indeed the pack is rated at 8C as mentioned in Timepilot's post. When two of these packs are wired in parallel, you double the amperge delivery, resulting in 84 amps, and this would exceed your ESC rating of 77. If you are working with TP's Pro-Lite cells, you will most definitely get MORE than 8C capability. In point of fact, under burst load, you could see a 12C output resulting in 64 amps per 5S1P pack or 128A on the 5S2P configuration. Definately more than what the Jeti 77 could handle.
Contact Hobby Lobby, 615-373-1444, enter 210 when prompted for extension, and speak with or leave a voice mail for Don McNett. He should be able to help you. If I had to bet a dinner on it, I would say your TP Lipoly packs delivered too much amperge for your chosen ESC. To me, the numbers just don't add up properly for the equipment at hand. Then again, perhaps I am missing something here. My stongest LiPoly packs are TP 2100 3S1P Pro-Lites, with which I am very satisfied.
RD