Radius problems (I think)

I am having a problem with a ten pin bowling game I am trying to make. The pins will not sit on the alley properly and anything I do seems to make no difference at all. I have tried making the radius smaller and have changed the bounds to Convex Hull Prototype but the same thing happens. any ideas how to fix and/or tutorials for this.

use the pins as a “icon” only, maybe?
Add an invisible cube ( faces =invisible), and scale it to fit, more or less the pins shape.
Make the cube “dynamic”, set the pin to “no collision”, place it “inside” and parent it to the cube.
It"ll be more “stable”…I hope?