Guys, I just got myself a TZ (yeah), though I am getting 80% bounce back/reject when I nail the lock... It doesn't look like there is something wrong though? Is that a common issue? Anyone knows about this?

thank you guys, i'll give it a try later today.
I noticed a couple of other things, sometime the ball doesn't come out of the through all the way and get stuck on the edge of the wood, some time from bouncing back from the shooter lanes separator?

another point I am curious about, the balls in the gumball machine get "jumbled". One gets push to the "front" of the gumball and the others go through toward the existing of the gumball behind it... I had the powerball stuck to the front of the gumball and had to send like 5-6 balls in there for it to actually go down...
Is that a common issue? I am not sure how I can make sure they stay nicely in line?
WP_20151114_21_05_01_Pro.jpg

You mean one of these?
http://www.marcospecialties.com/control/keywordsearch?SEARCH_STRING=03-8887
or
http://www.pinbits.com/index.php?main_page=product_info&cPath=13_2&products_id=629

My Gumball plastic globe has the built in ball guide (circle in red on below picture) but that alone isn't enough apparently? Are the above addition to that?
http://1drv.ms/1LgEvyE

Hmmm I had a look around but I don't see anywhere a part that seems to be broken or missing? the powerball just get pushed forward against the front of the globe by the oncoming ball coming down the ball guide at the back? Anyone has a similar picture of the inside of their Gumball?
Capture.PNG