I have the Atlas razor from above the tie and I can tell you the blade tabs are not covered. This makes it much easier to achieve proper blade alignment. I also had a Tradere and I just couldn't get a good shave with it. The blade angle had to be right on all the time or you missed hairs or cut yourself. The longer handle also made the razor feel unbalanced in my hand. I am currently using the R1 head and it fits my style of shaving perfectly. This is my best razor to date and it will never leave my rotation!
Chris - TOFLAC-U - BOTOC - Order of Pinaud - USAF Retired 1979-2005