Yes, thanks for the updates. If the RH stays pretty constant then wood movement will be minimal. But the ridges you felt where the boards are joined does indicate some wood movement is happening. If the grain of adjacent boards is not consistent, as it would be with quarter sawn glued to plain sawn, as an extreme example, then it doesn't take much change in RH for the boards to shrink/swell by a different amount so you feel the joint. Glues that have higher elasticity, like TB III in particular, are more prone to these ridges than TB Original which is much more rigid.

But it's still looking good, and that's all that counts.