Custom. Bah. What a deceptive word that is. Try "Future Monstrosity." Anyway, I am building a 35" 5er as my first bass. I've run into a couple of problems. Actually, the fret/fretting/fret board issues are all that stope me from starting. How in the word do I slot a 35" bass? I have a couple of fret calculators, but, do they take into account the for the fret slot? How wide do I make the slots? Stewmac seems to like .024" Now, I'm a complete neophyte to this (though I hope to fix that)...are there ANY pre-slotted 35" fretboards out there? I know Stewmac makes 24", but I think that if I could get a 35" then I could make at least reference slate/legend so that I could replicate it on future models. More questions will indubitably follow.