Got a new idea

[GorillaMaxx360]

OK I was thinking and it hit me a new idea. First you guys can tell me if it sounds good or bad-no offense taken-. I was thinking of instead of using lipo (if i would be using lipo it would be 2 Orion 2s 4800 packs-you cant talkme out of these for many reasons one being they are cool and light, but i know there are better lipos for less cash like 800mah to name one-).
Questions

1.) Would i get more speed/power/punch from going up from 4s lipo to 16 possably 18cell Ni_Cd, and if so how much more speed/power should i expect.
2.) Would i get longer run times with decent 16cell or 18cell matched batteries, Also if it is less runtime than the 4800 mah how much less.
3.) About how much more weight is 16/18 cells compared to the 4800 lipo Orions (2 weight 400 grams/13.2 oz), and will this significinetly effect my performance because the weight.
4.) How much cheaper am i looking to pay for 16 to 18 cell mached GOOD batteried.
5.) What are the best cells i can get for this as far as good runtime and good power.
6.) How long is they battery drop for (the time the battery getts slower and starts to be notacably getting ready to die) is it like hallf way into the ride or is it about 70 percent into the drive.
7.) How many charges do these good cells get before they are dead (meaning time to buy new ones).
8.) Do they die for good if you dont unplug them after every run like lipo(meaning they are shoot) i dont think so just making sure.
9.) Do i still need an external ubec for these cells 16/18
10.) Are they easer or more complicated to work with than lipos.
11.) Is it really worth the money i save, possably more power, easer mantance, more weight, and the battery drop of to go with these or is lipo much better, i am not sure of a priice but these batteries might be like 100 bucks cheaper.
(my setup- 333oz servo, 2 fans 7xl w/rc monster heatsink, hb diffs, 6mm cvds, slipperential, graphite chassis ti arms, hybrids, quark 125b, standard size 17mm dish wheels, crime fighters, esc heatsink, 36t spur, and 18t pinion.)
What are your opinions.






VS