I had a 58 rem. replica when a teen , I used all kinds of lube over the balls , fired it without to and that is the only times I experienced chain fires , I have used number 10 caps and squeezed down and pinched them since I wanted no misfires , I am of the opinion try both methods for yourself and see which you prefer or which one you have or do not have chain fires with.
Have only one rem. replica now a 36 caliber I bought from a gunshop and have never shot , I prefer my colt replicas , and use a home made lube . There have been may threads on this and never seen a agreement yet , so do it how you like to.