AC PrintrBot LC v2 X Bridge To Bridge Support

I was finding myself having to re-tighten the X belt quite frequently on my PrintrBot LC v2, I tried upgrading to a higher quality belt with less stretch, but that only helped a little,. After looking at the design of the two bridges, I realized that mechanically what you have here is a compression bow since the belt is off set from the carriage rods. In this you have two problems, one the bot is made of wood, wood warps even when not under tension, and I could see it with the naked eye, a defin