Me too. With the lock washer in place, i discovered the handle would eventually spin after a very short reloading stint so i took it out. The stock handle didnt have one, nor was there any slippage with it so i figured this one wouldn't either. 5K rounds later its still tight! Now if i could only keep the roller handle from backing out...
I found the same thing,my handle would come loose after about 30 cycles. I removed the lock washer and now it stays tight. No problems with the roller handle