"Turbo-ing" a crank shafts counter weights does absolutely NOTHING but hurt performance of an engine two stroke or four.
If this actually worked not only would the top R/C manufacturers do it to their engines, the builders of 500cc GP bikes would have done it and most certainly the F1 boat engine builders would have done it.
As it was explained to me in the mid '80's by a very well respected factory Honda and now Yamaha engine builder/tuner:
"It gives the engine builder something to show the client of which neither party knows what it really does."