I am putting the finishing touches on my touring bike (bike camper) and I'm going to get the wheels on the truing stand and do them up...I've done this before and have built wheels etc.. but this is my first touring bike and I will be loaded, so I want to make sure that the wheel's won't break and leave me stranded (particularly the rear wheel). My rims are old Aluminum Araya 27" rims 36 spokes 3 cross. They are pretty true right now (a few adjustments needed of course). If this was a town-ie bike I wouldn't even bother taking the wheels off and checking them, but like I said I don't want to be stranded. So, what are the signs that I need to fix the tension of my spokes? I know there's a tensionometer (can't afford) and there is a musical thing (tone deaf)..So when I grab a spoke how can I tell if it is too loose?
Any advice is appreciated.