New guy here. Returning to DE shaving after a 30+ year layoff. Fascinating thread, it made me go visit the ATT site. I'm seriously considering skipping the endless rounds of upgrades and acquisitions and just going straight for an R1 Colossus.
Hi BigPete! I did the same (purchased the R1 Colossus), however, I then purchased the S1 plates and I have not used my R1 Plates since! The S1 is my "perfect" razor!