buck-i,
They have a new line out this year called the Stainless Solids. I' m pretty sure they are the exact head you are shooting with a stainless steel ferrule. You can check them out at the Mar-Den websight. If they start making those in the 3 blade, I' ll go to them immediately. I' ve gotten excellent performance out of the aluminum ferrules, but I have slightly damaged them on occasion. The SS line should be indestructible.