I found the biggest issue was remembering what section I finished on to be able to remember to turn up or down!! I used to run 2 different lengths for my couch - front for looks vs. back for play. Not now - so much easier having one. Sounds like you need to find a visual aid to help, like one of those cheap see-thru keyrings you can write on or something simple like that..
When are you expecting the parts back from blasting?
