Hmm its ok on 5s..! they have tested it...! :) :) i think Holco did the test somewhere..!
http://www.multirotorforums.com/showthread.php?4048-Tiger-2814-(aka-Avroto-QC-Quadpower-etc.)-max-lifting-experiences/page2&highlight=tiger+motors
As for the wood props you suggest them because of the HL??