NOT KNOWN FACTUAL STATEMENTS ABOUT GLOCK 30 GEN 4

My 2nd G30SF also had accuracy issues and the WORST induce pull of ANY Glock I've at any time owned, And that i could NOT right it using this set up whatever I did and properly around one,000 rounds of trying to resolve it and “split in” the gun (which I have NEVER had to do with any Glock before either).Maybe a dumb problem, but may be the 30s