I am wondering..... I bought a brand new CB 341 and included was a pk of 135-16 size 22 leather needles. They worked fine and I made a really nice men's fanny pack in 5-6oz leather- no trouble . With my initial purchase I also requested to buy a smaller needle size for the machine in size 19 for thinner leather & thread. However with the next project, when I switched over to the lighter needles TERRIBLE issues began of breaking needles and also not picking up bobbin thread etc. Maddening!!! In looking back at my invoice, I realize that the needles sent were NOT a 135x16 or 135x17 but a 134-35 system- which were at least 1/4" shorter than the needles called for the CB341.
My question is..... Are those two really interchangeable or were all my troubles were because they sent the wrong needles? I cannot find any info online about it so thought you 'PROS' might give me a clue?