JY
I got my first scroll saw, the porter cable, for Christmas.
It seems to work best at 3/4 speed, the hockey puck in the center on mine, and others, was lower than the table top, glue a playing card, x-ray film something to raise it up level or cut a replacement. Being lower it causes vibration which can break the fretwork pieces. And keep an eye on it, it does sag after awhile.
Slow down, feed the wood slowly and watch the blade/line intersection only, you can NOT look ahead on the line the way you do with power saws. It takes two hands working together to move the wood, takes time to learn it.
I found that putting two 2x4's under the rear legs of the table made a lot of difference in how comfortable I was too, raised the rear about 3".
If you do not have an account on craigs list, create one then enter a subscription to the words "scroll saw", I got a 2 year old excaliber-21 with stand for $525 two weeks ago that way - What a difference a saw makes!
I have tried Flying Dutchman and Olson blades, the FD ultimate reverse works best for me. Blades from the big box store are ... well better off ordering good blades.
Home Depot sells poplar wood in 1/4 thickness, 4" & 6" wide planks - I used them a lot when learning.and they stain pretty well, no grain to speak of though.
Edit - I said when learning, hell I am still learning, that was called wishful thinking on my part> :-)