This skin is easier to fit well if it is pre-rolled to the correct profile using a sheet metal roller. That needs to be done before dimpling. I took mine to a sheet metal shop, along with plywood templates of the firewall and instrument panel. It took the man about 30 mins to roll it to the correct shape and that made it much easier to fit.
Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Airframe structure 95% complete, now working on integration, plumbing and wiring.
Flying my Aeroprakt A-22 STOL and the aero club's RV-9A while I build