In my humble opinion, tillering advice shouldn't be offered without first studying a picture of the bow at rest, unbraced. Each limb's bend should be compared closely to its own profile at brace, not to how it compares to the other limb.
Along the way, it should be compared to the other limb for relative limb strength while drawn from the archer's fulcrum on the string, but not the other's bend shape... unless they started off identical, unbraced.
For all we know, unbraced, there may have been an area of reflex right there near the right fade that, correctly, made it look a little flat compared to the other limb. Maybe it was perfect as-was, but you were told to weaken it.
Maybe not too. Maybe the limbs are identical. Maybe you were given good advice. But how would we know?
For our best chance at responsible, accurate advice, it's in our own best interest to always start tillering threads off with an unbraced side profile picture.
It's a bit of a pet peeve of mine