i don't know about the start right frame but i have a bailey 15" on a grace pro frame. i have gone thru 2 sets of tracks on my frame (plastic) when i called grace they said that the bailey is too heavy for them.the bailey wieghs about 60 lbs. and i bought it as a packaged deal. a LOT of people use the grace frames with bailey machines and have no problems but a handful of us have.
love my machine by the way
if you can swing the extra you should get the 15"