RE: parallel
14.8 x1800 = 26,640 11.1 x 2300 = 25,530 which gives a difference of 1110 unloaded rpms, and since this is something i have tested in the real world i know that a 2300 kv motor with the stock esc on one 5000 mah 3s cell provides close to stock speed ( visual analysis only), or i series 2s x2 to get 4s. 14.8 x 2300 = 34,040 which isn't too much rpm's but is much faster then out of the box, it would be like running the stock motor on 5 s 18.5 x 1800 = 33,300. My point for this thread was that i can utilize a single 3s cell or 2 x 2s cells without the need for any additional connectors or a harness. Keep in mind that i used the nominal voltage for my calculations and a fully charged battery will supply more voltage then what it is rated at.
W