mine are from a 2008 track pro and still did that. just sayin', in case you want to change your mind before you install them. not trying to persuade you in any certain direction, but it is an important note before you start riding $200 cranks that (in my case) fail within 6 months.
edit: just read "track only bike." in that case, let this be a warning for people doing a search for these cranks. sorry for not being useful otherwise!!