Here is a website that has information on the 185:
https://community.ebay.com/t5/Archiv...J/td-p/1818815
I personally like the lightness of my FW, but if you are finding that yours is bouncing around, then go for the heavier machine. It seems to sew in the same category as the FW. Straight stitch machines sew pretty much the same when it comes to non-computer machines.
As another poster said, I would buy both. The FW for $75 is a steal if it sews well.