I have had outstanding service from GAD custom.
My 11m french revolvers are being sparingly shot in some monthly shoots due to his ability to make these cartridges. Outside lubed, heeled bullets whose shoulder sits on the rim of the brass case.
PP - he is a little grough, but my experience with him and his cartridges 43 spanish, 8mm lebel, and 11mm french has been nothing short of outstanding.
You do have to tell him exactly what you want, but in my three years he has gotten more and more willing to chat about the right and wrong way to do older/obsolete cartridges with heeled bullets and long range cartridges like the 43 spanish and my 8mm lebel.
He uses the special crimp tool already mentioned bulit by Mr Rowles.
Just my experience
PR