I'm brand new to the club have a met Pro running version 1.6 is there any reason I shouldn't upgrade to 1.7 code???

Can anyone explain how or what is hit to allow the ball to Loop all the way around the back rather than being stopped by the diverters? most the time it hits the diverters but I know sometimes it Loops I just don't know why it does each thing specifically?

Can anyone explain how to install the Cliffy mystery hole protector. I took off the nut and washer on the bottom of the Playfield but up above there's very limited access. Do i need to try to take anything else off up above like plastics, metal rails.... or do I tap out the post with a hammer from below or do I have to sit there with a needle nose pliers and turn it 1/8 of a turn for two inches?

Just to clarify directions for the mystery hole Cliffy protector. yes the Plastics need to come off. Take off the nut and wash your underneath the Playfield on that post. You can leave the one with the two lights attached if you kind of spin it sideways. Meaning you can leave the lights connected but you would have to unattach the plastic. From the little hex stem posts. Then the metal ramp also will come off next step is you are going to need a long socket to get that post off. Probably about a 25 minute job.