Traditionally bike frames were stove enamelled (that is sprayed with wet paint then baked at 120 degrees C. to cure) A final coat of lacquer was used because it gave a better gloss that standard full gloss paint, and it 'sealed' any transfers.
Unless things have improved in the past 10 years, which I doubt, powder will not give as good a finish as wet paint, although it* may *be more durable if properly applied.
I once had the misfortune to work in this trade.
Traditionally bike frames were stove enamelled (that is sprayed with wet paint then baked at 120 degrees C. to cure) A final coat of lacquer was used because it gave a better gloss that standard full gloss paint, and it 'sealed' any transfers.
Unless things have improved in the past 10 years, which I doubt, powder will not give as good a finish as wet paint, although it* may *be more durable if properly applied.
What I've seen of Mario Vaz's work looked fine.