How had is it to take apart the Sub2000 and get back together! My general concern is the rear collar, is it screwed on glued on or just pressed on there? Other than that it looks like it is just screwed together.
the collar ia screwed on. you will need a strapwrench to remove it. its not hard to take apart but can be tricky to put back together.( http://roys29.home.att.net/Sub2k.htm ) this link has very nice pictures and detailed instructions. (Thanx to Roy )