Mitas E07s on the G/S, work fine wet or dry, road and dirt, and last at least 50% longer than anything else I've tried.
Will eventually have them on everything.
Dunlop TT100s on the R75/7 & B44 , suprisingly good on gravel roads for what looks like a road tire.
Distanzas, and Mitas E08s, work great too, but the Avons are $100- a pair more than E08s in Oz, and neither last like the E07s.
Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST