Hi, I need to change the pipe saddles so I can erect some pipe covering which hopefully will then fit as I will be using products from same company. Do I assume correctly that I undo the central screw and manoeuvre the old saddle from behind the pipes? would this be relatively easy? Alternatively I would prefer to do without them ! are they vital for the pipe support? The pipes follow on themselves so I do not see why it should be a necessity?