[2.6/BSC] Blade Flurry Assassin (Crit/Evasion/Life)

Currently using this build and it runs perfectly, i like it. also, the final skill tree link is broken :/

Hello everybody, I just had a quick question:

For the last skill build, Does anybody know why I wouldn't want to go for "Studious Combatant"? It seems like pretty large upgrades for 1 handed weapons, which is what we use for this build. If anybody could answer this, it would be awesome. Thank you.