Vapor: Just don't implement any 'subjective number scoring system' .. probably because seen it abused too much at many places, eg. @software review sites with so called 'stars' scoring system, reviews in car magazines to name some. Comments on quality/mount sys/other alike details should be enough. As for trying to unifying flow & temp numbers .. don't know if it's worth it. After all, it's too hard to judge or guess right importance of one over other in mirriads of different loops possible. Two rows of numbers/charts (flow/temps) in current reviews imho good enough. For me it would be interesting to see added pricing chart in addition to existing ones, but i can easily get by without. There is saying, that best is enemy of good.