I'm getting a fork cut for a threaded headset. Ideally, I'd like to have it cut ~2cm too long for the frame it's going to go on in the short term; it'll get moved to another frame (which it will fit better) in about 4 months.
Yes, I know that's a strange thing to do. But if I can get a few months use out of the fork before I get the frame out here, why not? I know exactly how long the head tube on its permanent frame is already, so I can have it cut now without risk.
So, here's the question. Is there any reason I shouldn't run a fork with a threaded headset and 2 cm of spacers? Secondly, can I get away with using spacers like those for a threadless fork (easier to find, maybe) or do I need to use the older style, the ones keyed to the machined slot on a threaded steerer - and if I need the old kind, any idea where I might be able to order some?
Thanks in advance, as always!