The tiers are a fancy statement this site has create ''to force'' players to improve/raise their clubs (mostly Driver & balls), so if you follow that pat....you are playing the way wgt wants you play
Ofcourse also is possible remains at an ''average'' tier (Pro or Master) & still enjoy the game without need buy new equip, i've see lot of Legends just only play AS, so they avg has not change, as any other tier
Btw, i NEVER have see a TL or Champ playing with the basic equip, so figure
Just a VIRTUAL fancy unusefull stats (in general)