CosmicOrangutan

Hey Everyone Can anyone offer any advice on cleaning the 130 PDS mirrors? What cleaning solution to use or brushes etc. I have some small speckles appearing on the secondary mirror and would like to get rid of them without damaging the mirror and the primary is gathering some larger chunks of dust somehow. I'm going to put my 130 into hibernation for the summer nights and want to give her a bit of a tune up. I'm also wondering whether to get the hacksaw out and chop out the section of the drawtube that protrudes into main tube. Is this a worthwhile endeavor (I use this scope only for imaging and an 8" SCT for obs/imaging)? if so can you roll the drawtube right out of the focuser to make the cut and then roll it back in? any other tweaks people would recommend im all ears. Thanks in advance, George