Yeah, that's probably the best, even if I'd be doing it I should be using the same type of blade combo, which is also something I'd have to fix unless I'd want to use PH blade with SH.
Focusing on using RPB more often / in drills / or/and whenever possible for a while is probably a better choice yes.
I just thought of this because, I figured whenever I try shakehand, now and then, I usually have the bad habit of trying to twist my fh side on the bh (TP style in SH) which works poorly... that's why I considered using shakehand to attempt to opposite effect on penhold.
Though, it's also a psychological factor that needs to be worked with so it's not even certain it had worked on the long run, because you (or I) feel inferior on the RPB your body wants naturally to step over, or go TP instead. So I think it's about somehow re-programming away that fear factor.
Because most often when I use RPB, I've decided it beforehand.. whenever I change to RPB during a rally without mental preparation it always feels somehow resistant, slightly delayed and most often one way or another fails the stroke. So annoying:x
I just want to have a ninja Wang Hao precision + Wong Chun Ting power, with a dash of Xu Xin sidespin RPB, is that too much to ask for.
But yeah, Thanks for all the replies!