im also a lefty so i would go with this.
Uproar, no doubt and pitch black.

I haven't throw the punch out but a friend has it, i would say the uproar goes longer and finish hard so you can play the classic lefty line which we all like to

also LH here
i look at this from a bit different perspective
i dont want the "finish hard" look
im more of a controllable, arcing motion
i want to know where its going at all times
not to say what i use doesnt finish, but its not the hockey stick backend
im having very good luck with the Eruption Pro hybrid
i believe i have the surface at 1000 + polish. allows me to stay further left and keep my angles straighter up front, gives me a bit more miss room than swinging it.

i also have an arson low flare that is really good on the dry, very predictable, actually have 2 of them
both of these balls, i have a 5" pin-pap layout on them

surface is everything these days, followed by pin distance
these are the 2 major factors in ball motion

i had a buddy who is in the regional game, mention a few layouts for me that have been really good
the 1 I like the bast is the pin in my middle finger which is a 5" pin-pap
from there, its all a matter of surface prep, which i tweak all the time until i find something that works. Alot of the new EBI equipment (and maybe others) are using a much lower surface grit and then polish.
it still gets through the heads and has some teeth downlane.
we went to a tournament last weekend that i knew was going to be brutal on 2nd shift, just no heads what-so-ever, early friction
took my arson low flare, (pin down, 5" pin-pap) 2000 + polish, and polished it again
was really easy up front and arcing, controllable, never got inside of 4th arrow and didn't have to loft it like usual a this tournament.
you could even go to a longer pin layout 5.5" maybe even 6"
it will make the motion downlane a bit slower

find a decent proshop and talk to the right guy, their knowledge is valuable when it comes to topics like this

Strike King or grease monkey.