re: LCtrl+G for mount
for grins, try making a keymap and add LCtrl+G with the string 'mount', save it under some name, then try right-click/load keymap on each of the clones. once the keymap is on every clone, try doing a LCtrl+G from any of them.

re: round robin not passing keys
very odd. i didn't check that as i wasn't working that area. i'll look into it

re: mouse clicks
mouse clicks across machines not working? i think i know what's causing that one... (runs off to code...)