I would say to be more honest with you're scoring and not jump into the master tier when you're not prepared for it. I don't know how many players (during live rounds) i've heard state that "I wish I could just be pro again".
I flirted with the 65 average after only saving my best rounds... then I realized that i'm not ready to go to master yet and started posting every round.. honestly. There's a huge difference between that and sandbagging.
A lot of players only post their best rounds which may elevate them to the tier of master long before they're ready to become master. Ah well.
Too little too late on this occasion. Good LUck.