I agree with you .. once the kinks are worked out.
However, I haven't seen a blued, 4-5/8" barreled .45 blackhawk with a tall enough front sight in about 2 years. If you go that route, expect some down time to send it back to the factory.
Or send it out to a custom pistol smith and replace the factory front sight with a custom one with pinned blades so you can swap them out as you change loads. This is the way I am heading with my next 5 1/2 inch SS blackhawk. The above mentioned Jim Stroh would be high on the list of smiths for the work, as would John Gallagher and David Clements.