I want to thank everyone for the very helpful tips and encouragement.
Funny, I find the spirals much easier with turns, corners, and intricate patterns. BUT, there is sanding involved afterwards for a crisp inside edge. I tighten the tension on the spiral and it stays within the cut area. If it wanders, I tighten it up a little.
With the flat blades, I am still having a problem keeping the blade in position when turning the piece. When there is a large cut without many turns or corners, I will use the flat.
I find myself switching back and forth between spiral and flat blades depending on the cut. Takes more time, but less frustration for me.
My Delta is a real pain in the butt when switch blades.
I will keep with it, and perhaps I will find a happy medium when scrolling. I am hoping to sell enough items this season to get a newer model scroll saw.
It's always a good day when you wake up, so don't sweat the small stuff.