I recently purchased a scroll saw (Grizzly GO969).  It had great reviews and seems to be a well made machine.  My problem is difficulty in inserting blades.  It has tool less blade mounts.  It’s impossible to see under the big broad table top to insert the blade into the bottom attachment.  “Muscle memory” is just not working for me yet.   If anyone can share a system for inserting blades I would certainly appreciate it.  Joe