Going straight dirty fighting seems largely ineffective, and the two main reasons that struck me as to why are as follows: -No method of entering combat. You are expected to stealth up to individuals to get into melee as a Scoundrel, or for the target to get incapacitated. At level 33, when I finally gave up focusing on dirty fighting and respecced to Sawbones out of frustration, this was my biggest issue. Every ability I had was haphazardly thrown at me with little synergy level by level, and for a while, I wasn't even sure if I was supposed to be melee or ranged DPS. Having some way to quickly enter melee range would help the Dirty Fighting tree a lot, IMO. -Limited/uncontrollable capacity to generate Upper Hand. I didn't yet have the talent that gives you the chance to generate upper hand on Lethal Wounds, which means I relied entirely on Blaster Whip to generate ANY stacks of Upper Hand. This is extremely frustrating and limited, and coupled with the lack of a way to get into combat (or move from target to target quickly), is a huge crutch when the class as a whole is designed around that mechanic. Other people have made finer points than I have, but I wanted to focus on those two particular frustrations. I might go and respec again at 50 to see if it's any better, but leveling through it just felt un-fulfilling, weak, and lacking. I just constantly felt like something was missing.