fifi, not so much a ramble about him being masterful, just a ramble about his suits and clothes in general.

really not sure I should post this because it's very long and rambly and doesn't make much sense.  and I'm probably all wrong anyway! I'm the least observant BH fan (I blame The Molony Effect) but obviously BH crew/TW & writers have intentionally crafted visual clues about Hal's state for us in how Hal dresses.  

S5

1855: dark pants from a uniform, covered in blood, lots of red

1955: sharp suits, dark colors, tan overcoat, red tie

Prequel: dark colors, part suit, casual, no red

Episode 1 & 2: tan & white, stuffy tweed suit, no red

Episode 3: tan & white, casual, no red (not counting the apron)

Episodes 4-8: dark colors, coat with red buttons

S6

Soldier Hal: dark uniform, splashes of red

Fan encounter photo javascript:mctmp(0);: tan tweed suit

Manager Hal: dark colors, suit but more casual, red tie

Spoiler

Awkward, Good Hal is in light tans and whites when we first meet him.  When he's in the cafe he starts off still with white shirt and tan slacks.  They've introduced red into the picture, the stripey apron, but I don't think that's part of what Hal CHOSE to wear.  As the series progresses he starts wearing the navy blue/dark clothes and the coat with the red buttons.  Suave, Bad Hal is in sharp double breasted suits with a red tie.  In his prequel he's dressed sharply, but missing the jacket and red tie, so he's dressed half light, half dark.  The soldier picture has him in again navy double breasted type coat with splashes of red. However, that fan encounter photo javascript:mctmp(0); shows him in the tan tweed again.  And back to the suits, Manager Hal, who like you said does look quite smug, is in navy with a red tie.  So, where am I going with that.  Not sure now. LOL 

I guess I'm trying to say when he wears the tan and white, no red, he's in "good Hal" mode.  when he's got the dark colors, and splashes of red, he's in "bad Hal" mode, but I think the severity of "badness" changes depending on how formal he is?  So the way I'm warping this to fit my logic is, in S5 I still believe him in good Hal mode, but the introduction of red and dark colors lead to him slipping (drinking blood, but not killing).  I think that will continue onto S6, Manager suit with red tie, he's slipped and I don't think he will go all the way back to good Hal.  But I don't think he'll suddenly become all-out Bad Hal.  That manager suit isn't quite as formal, and I think it's technically a uniform?  He probably would not have chosen it.  But he's still wearing the navy blue clothes and that jacket.  The Soldier uniform, hmmm, I saw some spoilers so I don't want to speculate if he's good or bad in that.  Plus the 1855 flashback doesn't quite fit my logic as he wasn't in uniform, but he was in the army, should have similar uniform to Fergus, right.  The tweed suit suggest we'll see him in good mode at least once in flashbacks. 

So overall my prediction is that overall he will be at the cusp of good/bad throughout S6 and the flashbacks will also mirror that.  Not the two extremes like we had in S5. 

Phew, I warned you it would be a ramble.  Feel free to delete this if it makes absolutely no sense.  I need to get more sleep! LOL