Thank you to share! Real question: Can you taste the difference? Would it only be obvious to a food expert?

I think so, plus the bone/chunk size differs, lambs grow fast. But it could be just self-convincing.

I have noticed stronger taste difference between different producers/restaurants than between different ages tbh.

I think in a side to side test it should be subtle but clear

Similar to the difference in grass fed vs corn fed beef, I imagine.