After testing a few thousand spins I didn't have very good results doing it that way.
The 3 spin mini game style performs better and covering the zero (s) is a good idea when getting into the higher levels of progressions. It depends on the value of units being used I think. I vaguely remember reading something similar to this previously.
turbos way will have long winning streaks and also losing streaks
i agree that betting against 1 2 3 forming is better....i still have not seen it more than once in 100 spins