I found a local supplier who gets fresh and it's usually shipped shortly after killing. But 4 weeks is good and you can then age for 2 more after thawing. Just no margin for error. Ask them if they are dry or wet aged. It makes a huge difference.
Owner/Head Cook/Chief Bottle Washer for Great Lakes BBQ & Feed Competition BBQ Team
FBA Member, KCBS Member & KCBS Certified BBQ Judge
Spicewine medium, weber kettle, gas grill