ShopTalk: 3 ball putter

[Graham Little]

I've got a client wanting one of the Hireko 4 ball putters. I see a lot of them made up with straight shafts and that means that the line of the shaft is on-set. My natural inclination is that they should be made up with a double bend with the bends at 90D to the face. Am I missing something here?   These putters are an over the hosel style so I was wondering if you have any tips to make sure that the shaft stays square at 90D. I would use tape but it seems messy.   Cheers Graham