Sticky Start/Select Buttons

[Tophool]

I've noticed after playing a bit with the assembled MintyPi v3, that the start and select buttons tend to stick inward rather than pop out naturally like the rest of the buttons.

Sometimes it's so bad that they are stuck in a pressed position and the shortcut codes are activated accidentally (such as start+select exits the emulator).

Has anyone else experienced this issue? I'd imagine a fix would be to try and widen the button holes...but the buttons themselves seem really flimsy (the silicone buttons purchased from the website). Has anyone tried other buttons as a replacement?

-Tophool