Theta Miles

Several months ago, I asked for ideas that may be the cause of my Miles skipping the first note of every other song and eventually having a weird background noise, while playing burned CD's.  Some gave me the suggestion, that it was probably my optic assy failing.  Well, they were correct.  I received the new optics today and had it installed in just under an hour.  I'm not a newby when it comes to electronics repair, but this job took me a little time to figure out.  I've been retired for around four years now and as they say, if you don't use it, you lose it.  After finally figuring out exactly how the assembly was held in place,, everything went like clockwork.  The sound is once again top notch and I'm getting ready to go up and "jam" for a while.  Thanks to all who gave suggestions.  BTW-what do I do with all these extra screws?  Just joking.
Steve