I recall some discussion that the hydraulic cylinder on the Lancair IV had a bit too much travel for the balance of the flap linkage.   I did a search of the archives, but could not conjure up the right word combination. 

What is the current wisdom on this topic?  Are mods required to shorten the cylinder stroke?   Disclosure: I have an OLD set of hardware, so this may be a problem that has since been addressed by the factory, that is, if it was a problem.

Fred Moreno