The new version of TRIP is very close to launch. Unless we have any major problems highlighted it'll go live early next week. One of the major new enhancements will be the introduction of a 'quality slider'. I first raised this problem/solution in 2007 (see this article). It's amazing that the concept has come back and works very well when in operation:
We have now colour coded all records in TRIP based on the concept of the hierarchy of evidence. When someone carries out a search of TRIP they'll have all the results presented. But, they may decide to only include the highest quality evidence, in which case they simply move the slider to the left and all the lower quality evidence is removed.