I've had a BMW R1200GS the last two years which I've used almost exclusively on tarmac. I've just traded it in for a new one and Continental TKC 80s are being fitted on Thursday. Other than the BMW Off Road course in Wales and a recent one day experience on a 250cc Honda with Off The Kerb in Dorking I haven't done much off tarmac at all.
I guess I'm not really keen on axle-deep muddy ruts, massive puddles of unknown depth, fords through raging rivers, camping, or aggressive enduro style riding, and my mechanical/maintenance skills are few, hence the Big Bike Under Warranty. But, who knows, maybe next year I'll be on a 400cc KTM held together with cable ties stuck in a snow bank in the Scottish Highlands mid-Winter

I'm booked on the Wiltshire TRF Wessex Wanderer weekend after next, and the Teesside TRF Coast to Coast booking form is in the post. And doubtless I'll see some of you at the next Surrey meeting.
Happy biking
Paul
Ottershaw, Chertsey