Great guide! I am enjoying my Claws/SR scrapper. I'm at 25 now and can definitely apply some of these tips. Really looking forward to trying the Attack Chain. I was wondering if you thought it would be any benefit to put a Defense Debuff in a slot for Slash and ToHit Buff in Follow-up? Perhaps as opposed to the EndRed. Not sure if that'd help if you've got Stamina 3-slotted.
I haven't picked up Focus yet, but was wondering, does it just do KnockDOWN or KnockBACK? If it does knockBACK, it'd knock the guy away from you and you'd have to chase. I'm assuming it just knocks him down so he stays right there for more pummelling? Sounds great!