Sorry gps, I didn't realize that this was a mark 2 version, and was I concerned that as you are using a propshaft, unlike the solid shaft with longer splines the gear was on in the gearbox, the flexibility of the UJs and engine movement, may cause the gear to wobble on the short contact surfaces of the dog, causing rapid wear.
This was why I did my welded mod to get round this potential problem, but no doubt you have a cunning plan to prevent this.