I have the 206 rb 5 servo gear reduction motor 500GR,( 1st machine)
sews belts 10oz veggie just fine. seems to work best with a 92 thread 20 needle.
I have used 138 with a 22 ok, machine seem to struggle with 207 with a 23 needle. Sovran, what needle/thread do you use?
I do hand wheel to kick start the first couple start up punches and when I slow down and reverse. I think I am developing a feel for the machine, foot and hand feel. adjusting tension, pressure foot, changing needle often.