I am wanting to supplement my cattle with lick tubs. Which kind would be the best? They have the cheaper ones that are not as hard so they go thru them faster or they have the ones that cost twice as much and are suppose to last longer. Any actual experiences you can tell me about? Also what about salt mixes? They have pretty high protein to supplement so-so fescue hay. Which do you think would be the best? I feel like my cattle need something because the hay is not that good. Thanks for all responses!!!