I don't own a Redhawk, but I'm familiar with the triggers. In general, regardless of the maker, I don't think there are many smiths who do a better trigger job than Kenny Kelly at Mag-na-port. His business is porting barrels and installing brakes, but if you ask nicely he'll do an action job. None better IMHO.
As an aside, Kenny just was awarded "Pistolsmith of the Year" from the Pistolsmith's Guild...Tom