I have gotten this site mostly up now with some initial gripper ratings from Matti's RGC data. Still have a lot of data to load and it may have to come out pending response from Matti which I have not gotten yet. If you rate grippers and have cross calibrated with others to verify your process and you are interested in contributing to the database, let me know. I now have an easy spreadsheet for values to be added to for bulk upload into the database. I haven't tested the site in all browsers yet either, so if you see a bug let me know. Also would love to hear what you guys think of the pages so far. I added some additional useful stuff on the gripper ratings page today too.
Site is here: http://www.gripratings.com