Accuracy is Speed
Join Date: Apr 2007
Location: Huntington Beach, CA
Bikes: 2007 Bianchi 928 C2C w/ Ultegra compact
I'd say custom forks are ideal. Frame geometry varies with size, and because forks are an essential part of frame geometry and affects handling to the same degree, the fork geometry "ideally" needs to match the frame geometry. The problem is stock bikes need to cut costs somewhere, so they use a stock fork size that fit 90% of their bike sizes and that's what you got. Most custom bikes however have a specific fork tuned to a specific bike size/geometry.
So, the answer is YES, a custom geometry fork to match the bike is always better (assuming your original fork wasn't properly fitted in the first place). A few builders that custom make steel forks include Pereira, Kirk and Curtlo.
However, I have never specifically had a custom made fork for a bike from a different maker, so I can't say if it was a good experience or not, but I can't imagine it would be a bad experience as long as you give the builder the full geometry of your current frame to match.