My PW is 46 degrees too and I play a 50,54,60 and love it. I have gotten really good with knocking down my 54 degree and have feels of swing length and where I grip on the club that give me 5 yd increments dialed in from 85-115 yards.
I have roughly a 7-10 yard gap between full swings on PW and 50, but I rarely hit those full, usually knocking them down a bit too.
Long winded answer to say that either way you will still have a 6 degree gap, but it's up to you if you want it to be between your PW and GW, or SW and LW.
I'm not really familiar with those details, but I know @iacas is, he has been doing course ratings for a number of years. I do know that ratings are done following USGA procedures, but that the teams are organized and assigned by the State or Regional Golf Associations. I'm not sure if Argentina has subdivided into smaller groups like we have, for you it might be the national association that does it all.
I voted "yes" with the understanding that no organization is perfect. Sure, courses need to be set up to allow for maximum roll out in the fairway and some speedy greens to make it entertaining to the casual golf watcher. The PGA Tour is in business for itself but their tournaments do raise good amounts of money for charities. I watch some of most PGA Tour tournaments and do enjoy them and agree that they do help the business of golf. Although they are often involved in controversy I do look to the USGA to maintain the integrity of the game and sponsor the US Open championships.