That is the best advice.... try them both and get the one you want.
The flattop BHs all come with a steel grip frame.I like the Bisley grip for target shooting. The Bisley grip frame is steel where the standard Blackhawk grip frame is aluminum so the Bisley is a noticeably heavier gun with balance more towards the rear. The Bisley hammer is also much easier to reach as noted above. I have one of the new Bisley Blackhawk flat top .44 specials, very nice.
The standard blackhawk grip is probably better for draw and fire shooting.
That's right, I forgot.The flattop BHs all come with a steel grip frame.