Just bougth a backpack raincover (8,90€).
Took off the snapdeck and covered the FreeRad with the RainCover.
You can see that it covers the holes, even with some cargo.
(it has a built-in strap to tight the rain cover)
Put the snapdeck over again
And then i've rolled it (burrito style ehehe) and secured it with a cam strap
(the one i had to secure the snapdeck)
(actually i've reversed the rain cover, i use the green when rolled and the BRIGHT YELLOW when open)
Time to test it......does anyone knows any DIY RAIN DANCE??