Granite is not the best rock to climb on in blazing heat, but at least they're not encircled in flames like Torridon at present. Checking the boulders on Arran for the new edition of Bouldering in Scotland, I'd appreciate any descriptions of problems done on the Corrie boulders or comments on problems and grades on these or the higher boulders on the island such as The Mushroom.
Corrie Boulders problems
Druim Wall on Clach Mhor Druim a Charn
The Fairy Dell tidal boulder