Has anyone tried sewing canvas without changing the needle from leather to fabric? I have a Nakijima 421, which I understand is the forerunner to the Juki TSC 441. Haven't used it in 20 years or so and am getting reacquainted with the entire process of machine sewing. The leather needle is now in the machine and I am uncertain what kind of needle I would need to buy to sew a few projects with some old canvas tarp remnants I have kept over the years. Any help would be appreciated.