Well i hark back to years past and it wasnt that long ago when you think about it maybe 5 to 10 years in some cases. Ok MotoGP WSB and the like have moved on and the riders are contracted to do these championships as are the Roads Specialists like Guy Martin & Co. But for me we had a few Racers who could master both and for me they where Steve Hislop one of the greatest all rounders British Champion & TT Champion, Carl Fogarty FI, WSB Champion & TT Champion and of course the ever youthfull Jim Moodie British Supersport Champion & TT Supersport Winner
If you think back to the early 70,s a lot of GP Stars came to the TT not just for the points in the Championship but also the Money. A TT Win back then was worth more in monetry terms than a GP win in itself. Racing has got so professional these days the tables have turned money wise.
I think we will see a good all rounder in the future given time but as to who it might be i have no idea all the best one and all Irish Ago.....