Getting ready to side our home and have two options for the siding we like: Georgia Pacific Cedar Spectrum or Certainteed Cedar Impressions. At first glance, both products follow the same specs (or close to): .100 thickness Triple-5" configuration Molded polymer w color throughout Seemless corners GP is a bit cheaper, but we worry about fading and realistic woodgrain finish. The CT Impressions were reviewed by Consumer Reports and given a great grade all the way around but no review of the Georgia Pacific product. O= I cannot find out any info about he Spectrum. I know they offer fewer colors and configurations, but that is OK. Anyone have any insight they can offer on either product? Thanks much all.