I have just purchased 29k60. I was wondering what is the range of fabrics, and leathers this can sew? I got it for multiple purposes, but only know generally it can do what I want.  Also your above needle conversation, now has me confused.  Will the 
 
	Leather DPX16, 135X16
 
	Fabric DPX17, 135X17  needle sizes also work on my model? 29k60. Thank you!