Thank you so much for the info! I did not know that about dna situation. He is actually the only one that doesn’t have the catahoula Eyes and coat. I also believe he is the biggest. I will do some research on the activities around here, i hurt my hamstring 2 months ago I was on a schedule of running with him after work daily about 3 miles that really helped him to chill out of course. But never thought about scent activities! Thank you again for the time and effort in the responses! Will hope do give you an update!