Got one of the 763 Diamond Glass blanks from Ron at Hook and Hackle, and it is a beauty. The butt end measures OD .445, and I'm having a problem finding a reel seat to fit it. (Problem compounded by wanting a sliding ring, down-locking reel seat!) Can find some really pretty ones through REC, but even custom boring only goes to .438. Is it much of a trick to use a round file and enlarge the bore? Is there a company I have yet to hear about that produces a sliding ring, down-locking reel seat with a larger standard bore?