Thanks all lots of good info!
I did not Trim off any fat just cubed both meats up and started Grinding.
I feel like packing is the reason for the air pockets as I think there is still a little fat in the finished product. I could tell the first one had way more wrinkles, and larger spots than the last few I did. But I will also be watching the temps closer next time around because I could have let temp spike that could have greased out the chubs on the outer edges.
My wife hung in there for a while then just said good night, I was on my own once it hit around 1AM

next time I will aim towards smoking on a weekend or a workday where I am at home with very few meetings scheduled.
I did end up cutting them all in half and vacuum sealed most of it, figured this would help it last longer in the freezer, but I don't think that will be an issue. Small batch will probably get eaten pretty quickly.