Well a friend has send me an OEM crown for my destro and I am trying to figure out a way to install it...
First I have a rep case with a rep case crown tube. I have as well a Jimmy case with a jimmy case crown tube installed on it.
PROBLEMS:
First of all the crown although for Unitas it takes the 1,9mm stem (instead of the 2,1). Easy to fix I guess (with adaptors something)...
Second the crown on the edge has a small extended circle that leads to the following problem:
It CANNOT go through the rep crown tube... That means the hole needs widening (don't know how to do this without destroying the inner rubber seal)
It CAN go through the Jimmy crown tube hole (and I was happy for it ) BUT jimmy's tube diameter is around 0,5mm and the inner circle of the crown accepts less diameter tubes. So although it goes through the hole is does not LOCK.
I guess this is a bigger problem than the hole and it needs a different approach.
So the other problem I don't know if it will exist just yet (because I have not been able to get the crown through the tube) is if the crown will LOCK with the rep tube (it seems it might work -both around 0,4mm- but it will be millimeters if not)
Photos:
CROWN
REP CASE (notice the smaller hole and the smaller diameter tube)
JIMMY CASE (notice the bigger hole but also the bigger diameter tube)