I just got 100 of the jumbo cornish from Cackle yesterday.
Its the first time I ever ordered from them and its really only because the owner of the feedstore ordered them for me.
He has 4 that he orders from. I have gotten them from Ideal and Welp too.
They seem pretty much the same except I noticed that Welp's chicks are always bigger from the get go, I mean the day they arrive and I take them out of the box I always laugh at how roly poly they are.
The others are not like that so its just a matter of a couple of them having a slightly different strain.
If I were you, order from the hatchery that is closest to you so you limit how much time the birds are in transit.
I think you will find that everyone on here has ordered from just about every hatchery that is out there.
Off the top of my head, Murray Mcmurray, Cackle, Ideal, Welp, Central, Mount Healthy.
There are more but those are popular ones.
If you think you want to order from Cackle then go ahead and give it a try. You can always try other places later but the ones that I got from Cackle yesterday are doing extremely well. They were only in the mail one day. They are very chipper, made the trip well and I haven't lost any.
So far I have no complaints.