Yeah, I put the holes in there for looks and to lighten it a little. Thought about dirt getting in there after I installed it. Don't think it will be a problem but if it is, I can make one with a solid back just as easy.
I work for a company called Spantech. Here is our website.
http://www.spantechllc.com/We have just started a youtube channel and you can see some of my work there.
http://www.youtube.com/channel/UCH8G--EPqd_xY2YqOrSfuRQ