Free: Contests & Raffles.
Cows, don't matter if they hang 1 day or longer. They taste great either way. Bulls (even spikes) have never been good for me unless hung for a min of 4 days. My last spike only hung for 2 days, and then cut up. It was like any bull, not tender at all. That was a hard lesson. My wife is a phenomenal cook with any game meat, so it definitely had to do with lack of hanging time.
Hang for 5-7 days if the temps permit, then cut it up. If not I have Steve Egger on Perry in Spokane hang it for several days and then process it for me.
I've deboned lots of elk and deer on the spot, then into coolers asap, then finished cutting, grinding, wrapping, and frozen pretty quickly. In most cases the meat has been very good, the biggest down side I've noticed, the meat is bloodier and that comes out when cooking. Meat that hangs for days seems to bleed out a lot better, but I cannot specifically say it tastes better or worse, I would need to cut up half and hang half off the same animal to be able to accurately answer the question on taste or tenderness?
My hunting buddies grandpa who used to be a butcher in Dayton WA many years ago did tons of beef and wild game. He always told us 14-21 days for beef, 7 days for elk, and no days for deer. Now that I do the gutless method to process my animals and de-bone them in the field, I don't hang meat at all any more. I can't tell all that much between an elk that was hung or an elk that was de-boned and processed quickly myself.