What Sherman aspires to be
I don't understand your critiquing of QB's mechanics Kastofsna. Keller's mechanics are worse than Palko's & you love Keller. His left arm clears out from in front of his body less than Palko's right arm does. Keller tips his throws the ball by patting it once before his release. He has a wind up release similar to Palko except their release point are different, Keller's is more of a 3/4 sling. I hope he fixes his release point in the future.
Your bias has been exposed.
Personally I like both QBs, their my two favorite draft eligible QBs, but Palko has the least mechanical problems.