Thank you for the serger input, all! Learned lots....great idea about using different colored threads so I can troubleshoot easier. I haven't played with it yet but I Ordered some neutral threads to start off from all your suggestions and will, also, try my regular threads spools as suggested. We'll see how it goes...
Rhonda....great idea on storage... I might have something that may work. I don't typically keep this size thread on hand.
We sold our RV this weekend...this was stored inside hubbie's big workshop so when we pulled it out for buyer, we started organizing hubbies workshop. It a huge shop and, with the RV, his tools have been scattered everywhere. He's got room to work now......he's was in heaven until I handed him his project list. Hahahaha!!