I'm cheap and besides I would have to order GOOD oil.
I use shell rottella 15w40 for summer oil and I haven't had any clutch drag probs. Rotella is suposed to be free of the detergents and additives that are harmful to bikes/clutches.And I can find it easilly on the trail, try finding amsoil in butt **** Saskatchewan, let alone at a little gas station up north ,in butt **** Sask. ;D