Moving awr data from 10gR2 to 11gR2 using awrextr.sql and awrload.sql

I have been wondering for a while whether we could export awr data from a 10gr2 database (awrextr.sql) and load it into an 11gr2 database (awrload.sql). I got to test this yesterday and it works fine. I was able to do the awrload.sql with No errors. Afterwords i even ran the 11gr2 awrrpti.sql script to generate awr reports using this data. It produces awr reports, but as one would expect, the portions where the data is not available in 10gR2 (eg: wait event histograms), the report just says “no data exists for this section of the report”.