We have our order of 50 Cornish Xs coming, double what we have done before. Twice previously we took the chickens to Goffles poultry to be processed a 1 to 1.5 hour drive from home; in the back of a pick up truck with a cap. It was problematic, and we are concerned about loss now that we have doubled our count. We have considered processing at home, but at less than $2 per bird, it's barely worth it to get the equipment - as long as we can figure out a better way to ship the birds.
1) heat (even with the cap windows open, if it's a hot day those broilers like to get stressed. This is what we percieve as our #1 problem because it really ads to the stress on the chickens)
2) stress loss (we didn't lose any on either trip but they were NOT happy at arrival. double the number of chickens will increase the heat and stress)
3) mess. Trip 2 we lined the truck bed with a tarp. That helped, but man was it a mess to clean up.