They say beauty is in the eye of the beholder.
Personally, i do not find that model to be attractive, I much prefer the traditional lines of a Single Action Army with the old plowhandle grip.
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I don't know how much experience you have with the 45 Colt cartridge, but when not shooting mouse farts, recoil can be significant. I usually shoot full house Black Powder loads in my Colts with 250 grain bullets. I do not grasp the gun tightly, but instead I hold it slightly loosely, so the grip rotates slightly in my hand during recoil. This allows the muzzle to rise a bit, while absorbing some of the recoil. This allows me to cock the hammer for the next shot as I lower the gun. I can shoot this way all day long without feeling punishing recoil.
I have never fired one of those single action 'Lightnings' with the birds head grip, but it appears to me that the shape will prevent the grip from rotating in the hand, instead transferring all of the recoil straight back into the hand. No, I have never fired a real Lightning either, so perhaps I am wrong.
I have some experience firing the S&W Russian model, with it's big hump (knuckle) on the grip. The knuckle was specified by the Russians specifically to prevent the gun from rotating in the hand under recoil. It does this very well, the recoil is directed straight back into the hand, without any recoil absorbing effects from a rotating grip. Recoil with the 44 Russian cartridge, which has considerably less recoil than the 45 Colt is not unpleasant. I don't know if I would feel the same if the Russian could chamber my full house 45 Colt loads.
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Personally, if I was in your shoes I think I would be looking with favor at an Open Top or a Richards Mason conversion over the 'Lightning'. It appears Uberti does not chamber the Richards Mason conversion in 45 Colt, so my choice would be the Open Top Navy. The Army model has the slightly longer grip shape of the1860 Army, which does not rotate as much in the hand as the grip shape of the Navy model. The same grip shape that was later adopted for the Single Action Army.
https://www.cimarron-firearms.com/products/revolvers/open-top-revolvers/1872-open-top-navy.html
Funny, I see Bob Wright is recommending the same gun. Funny, we often seem to agree on stuff.