We are working with a RED Monstro and a BlackMagic PCC, timecode is being jammed to both,.
This is not to sync audio but to sync the two cameras together.

Both have project/base frame rate of 23.976, and our shooting rate is 29.976, to give a slight
gliding/slow mo feel.

When sycning both via timecode in Resolve, the cams have been off everyday so far, sometimes by 6 frames, sometimes 2 seconds and it drifts throughout the day.

I was wondering if there's anyway to get TC spot on for both or because of the offspeed shooting rate it will always be off regardless that both cams have the exact same settings:
23.976 project/base, 29.97 shooting rate