In your woods, definitely. But, all shafts are mass produced and can be bought through catalogs. There is no such thing as a custom made shaft - just a custom fitting of a shaft to your swing. I think that is what you meant.
I bought TT tour ultralight shafts for my hogan irons and couldn't be happier. I also bought an Aldila NZ graphite for my driver. I'd suggest finding a pro with a Titleist wagon and try all sorts of shafts on for size.