if it was me i would just go at my pace where you feel most comfortable doing. learn at your own pace and don't let people rush you faster than what you're able to do. when you get rushed thats when you start making mistakes. personally if you want to study the helicopter how it works i think thats cool. i don't see no harm in that i did the same thing originally when i started out. heck building the helicopter/fixing is half the fun to me. i say fly your blade 300x when you're ready to.
far as my helicopter project go's i started my own post. its under the flybarless section titled align t-rex 600n project. i just got paid today so i'm getting ready to order some frame and clutch parts for it. so i can move forward with the project i will post new pictures once i get all the parts to build the frame with here shortly this week hopefully.