Does that count the plane you got to almost build twice??
Joking aside and no sarcasm intended, but if you've never used 1/4 turn fastners how do you know hinges are faster to install (same question to other posters who've never used them)? We find the fastners to be quicker on the firewall than hinges now that we've figgured 'em out. Only one side to rivet and a simple hole to drill in the cowl. A first timer is gonna take awhile using either method.
The puckering can be eliminated rather easily if you're careful, and on the bottom it's so much quicker to remove the 1/4 turns than using a cordless or screwdriver and needing the extra screws to replace them when they get buggered.....at least that's my lazy view.
Warning - if you plan on using the rolled hinges on the bottoms....first an eye or two will break (no big deal), but if/when the pin breaks in half in the hinge on a taidragger 4/6/7/9 it's a real peach to fix.
Just my 2 cents as usual!
Cheers,
Stein