I bought this used custom Viking a little while ago. It looks similar to one of Viking's old production cues, but it had custom colors that the previous owner wanted. I think I picked it up for around $300 in used condition. There are nicks in the butt of the cue, but none of them affect the playability. The cue rolls dead straight still and the shaft is probably around 12.6 mm (that is my best guess). Please post some offers. Thanks!
