Hi dear mishak!
Well...
I'm a bit confused indeed...

If we say "develope a system" the term "develope" encases all the process of solidification of the trading system, testing included! Now... if we do a lot of test and retouch and lot of test and other retouch an so on... isn't this experiencing?
I think that in order to develope a solid and profitable trading system experience is needed...
Studing only TA and then building up a trading system with what is learned don't is making experience? I don't think that the system can work immediately and however it can be surely improved!
Anyone out there have developed a trading system from nothing without experience?