Riveting on a Curve

I'm getting ready to Rivet the curved deck behind the canopy on my RV-14A. I've already built a -7A but wondering if anyone has a better technique for shooting rivets on a curved surface? That is, what's the preferred rivet set, pressures, etc to get a nice looking result?

Thanks!

Back riveting

The best results I've had when riveting curved surfaces on my 6A has been with back riveting. It takes two people, one on the outside holding the back riveting bucking bar and me on the inside with a back riveting set.

Turtle deck

I don't recall any problems so any rivets I couldn't reach were driven by my Sweetie.
Sioux 3x
Swivel set
22 psi (#3 rivets)
Tungsten bar

There were always a couple proud heads. We circle them to be replaced at the end.
I tried back riveting several times and was never satisfied with results so we always used gun/bar.