Yes, Dan. One Tier Point = One Reward Credit. You didn't know that????
See: https://www.totalrewards.com/content...l-rewards.html

And see: https://www.totalrewards.com/content...l-rewards.html which shows the same values for tier points and reward credits from your play.

Earn at least 1 Reward Credit for every $5 you play on a reel slot machine or $10 on a video poker machine. Some machines have lower earn rates and these games will be clearly marked with the different rate.

Oh... and the RCs do not come on the tier credit bonuses. ONLY on the "earned" tier credits.

Same with Great Gift Wrap Up Points. 1 GGWU Point = 1 Earned Tier Point. So you are also penalized for the GGWU on the full pay machines.