There are ton of posts about the problems that Anti-Lead system has Dave. Alot of times damage doesnt register like it should. You can clearly do a full pb on somebody with all the pallets hitting and deal 20 dmg. Hell i've done alot of 7 damage shots with Limit Breaker.
And you should start working on how to fix these things.
Also ping and distance effects the anti-lead way too much. Not just the delay, but the damage too.