New to sewing machines. Need to know if the tippman boss is a worthwhile upgrade being that it's completely manual. I plan on using it for belts and holsters with 9 to 10 oz of leather. I know it'll give my poor fingers a rest from poking leather but my question is, for those that have or had one, is it worth it? I was looking at the model R with reverse.. or stick with the original or go with something else completely?