Quoted from wylcot:broke two pins on the U6 while trying to take it off the old one.
So I got one today, at Ecflipp.And then, playing without the glass, I realized the axis moves for the third ball to lock
The ball locks are virtual unless you get the ROM for the Deadworld mod, which I thought was only available from Pinbits. If it is one of the standard ROMs it won't divert until you start multiball.
Maybe that is your only issue with the ball locks?