Cuz anything that weans under 600 pounds on my farm at 205 days will not stay. No if's ands or buts. I do not care how good they look.
It's good to have a set standard, but what I don't understand is exactly what you are selecting for in doing so.
You have said on numerous occasions in the past that you creep feed from an early age, so based on that you're not really selecting based on the dam's ability to milk and raise a calf and since the calf is still suckling his dam you're not really selecting for the calf's own growth potential when on feed.
I have gathered that you try and provide the best possible grazing for you cows, which is always a good practice and is commendable, so wouldn't it make more sense to see what your cattle are capable of doing by themself first and only start creep feeding after the official weaning weights has been taken?
Compensatory gain will still get you where you need to be at yearling age to still be competetive and since you make no secret of your feeding regime I can't see what you have to lose by not creep feeding from an early age.