Hey Jim, you seem to have a high regard forimprovenet. I think you should be aware that its usefullness doesn't seem to carry to all areas of the country. I have unsuccessfully tried to use them on numerous jobs. I have to laugh at your 4 contractor referres by tomorrow. Try no contractors by the end of two weeks.
In my area (one of the largest cities in the country), I have found it to be completely useless and a waste of time. Glad to here you have good luck with it.