bigrick5

just bought a phaff 1245 wont to sew two or three layers of 6/7 oz leather and have a nice looking stitch maybe for a holster or belt what would be the best size needle and thread size and do u use a different size for the bobbin and the top thread I used to have a pro 2000 wish i still did but I got this thing at a bargin so thought I would give it a try any info would be apreciated