Well I just drained the rig tonight. It is a little tougher draining it as there will be some water dripping down the front of the case when you tip it. I guess you could try balancing it and pulling the plugs when it is tiped forward already, but that is a little hard with a 50 pound Cosmos 1000 .

Once you get over that, seems to drain pretty well. I just took into the bathtub and tipped it forward. Was a little easier than the old swifty res. I would recommend putting a drain line in though if you are using a MM case.