Scofields are a very acceptable kit for Cowboy'n, some of the most famous gunslingers of the old west used them at times. Altho they used numerous others as well, John W Hardin and Billy the Kid were both said to have used them some.
One of the funniest things I've ever seen at a cowboy shoot involved a Scofield. The scenario started the shooters sitting on a chair in front of a window opening of the façade. When the shooter using the Scofield stood up and drew his pistol, he whacked the underside of the window sill with the pistol barrel, The gun poped open and ejected all his live boolits on the ground. Dude was standing there with a droopy pistol in hand looking like it had just come out of a Cheyenne Social Club ( or a ###### challenged elder statesman as one club member put it).
They do have a speed advantage if you can convince your shoot director to include a "re-load on the clock" in every scenario. The break "open action & eject" really is a bonus in those situations.
Actually, speed-wise, I think they can be slicked up & mastered like any other Italian copy. We have one shooter here in Ab. that uses them regularly and at the Wyoming state cham. every year he does quite well with them, usually placing in the top 3 in his category.