the low water partridge hooks I was using register a 33/64ths on the precision caliper I used
The TMC 7999 3/0 measures same,
the TMC 2/0 is legal.
You won't have to reserve your 2/0 for fly swaps, give them a measure yourself and see!
Plus there is nothing preventing you from bending the point in 1/64th to become legal.
will post image later...