I have an arka, great little gun. I tie my own bands for an ab biller gun that i have and was wondering if there would be any negative effect of using one band in the hole for the second band on the muzzle. my bands that are on it aren't done yet. I also just ordered one of the mako predator guns and would like to be able to use bulk rubber for all my guns. does anyone do this, no use threaded bands in the intended spot and just use one circular rubber?