Make sure there is enough clearance so that you don't "heel" a sharp when using the exp pedal irregardless of a spec. I played, as a sub in another church, a Johannes supposedly built to (some so called) spec and was constantly bumping a nearby sharp. Also when playing lowest B flat, hit a nearby toe stud which woke everyone up including the organist, me. The regular organist told me later "Oh, yeah. I meant to tell you. I've gotten used to those issues".
Rgds,
Ed