I'll be there, I love Arran and my Great Granny came from Arran, so i've been a few times. I'll probably be there in advance of you lot as I hope to camp for a couple of days. Tarmac circuit of the island is nice if you stick to the coast, inland roads are mega steep, did it once anti clockwise on a Brompton :shock:
Eager to try the red or black graded routes marked out by the Arran MTB Club. I could email them and ask nicely if one or more of their members might like to join us and guide us around the route on the day
Looking forward to it

,
Velo