2) In my opinion you can learn more with 3 fresnels, some red, green, and blue gel, and a white drop... maybe throw in a 4th fresnel with some amber just for kicks. Also since this is subtractive, instead of additive like CMY, what you will learn translates directly to working with gel.
P.S. I love the "master the rules before you can break them" idea. It's very true.
I hate to do this, because I am sure it is late for all of us, buy you have your additive and subtractive color mixing backwards. RGB is additive and CMY is subtractive. I do agree with what you are saying though