Haha, Wishful thinking with the coke can trick! Basicaly, once an aluminium isis crank gets damaged slightly by not being mated to the steel bb axle corretcly, it can only get worse. The same goes for putting old isis cranks on a new bottom bracket,,,,even if the the bolts were originaly done up correctly! There is no bodge for this. Unfortunately Isis is fine when it works but has major flaws in its design. New crank arms time!