Solar panel system advice/personal experiences please

So, if you use those plastic mounts, you have 24 screws to remove to remove the module? I would suggest to use four pieces of aluminum angle and four pieces for the module, use a single pin in each mount. If you want to remove the module, just pull the pins.

What I found with my single module is that I don't even want to get up there on the roof to change the tilt angle (easy to do), much less remove it for any reason.