I have to admit I have my scroll saw in a heavy duty metal welders table, so I get zero vibration. And I had top blade slippage problems. I had to rework that situation, now I need two hands to tighten the top blade. Also need to change out the screw and nut out every few weeks. Time consuming yes, but doable. If you saw my saw setup you would think “what the heck”. Do I think a better saw would be nice, yes I do, but this one works for me.
I wish my saw could accept 2.5 “ thick wood.