Given 310# snow load in the Sierras, what are some suggestions for a superior pole-mounted tracking system? Right now I'm considering DHSolar, but I'm unfamiliar with the product. Eric Stikes GoodSun Solar A 501(C)(3) CA. Non-profit Corp. NABCEP PV Pro 001.530.798.3738 (cell) www.GoodSun.life [sent via pigeon...or cell phone]