I hope rain doesn't get in, but so far most of my electronics (the drivers and LEDs) are coated with thermal epoxy and joints are coated with liquid electrical tape. But, I can't imagine the cross bars were THAT water tight to begine with.

There aren't drain holes per say, but the sides of the cross bars aren't exactly sealed either. I will take pics of the actual cross bar when I get home.

Grounded yes... hell yes.

And spade bit, ROFL no. I just have a DAMN messy work space right now.