thanks for the fast response guys-much apreciated.i went to the field today and took off the 10-6 and tried a 11.7 and was amazed at the diference it made then after a couple of flights i was aproached and was given a 12.25-3.75 and felt better again and stuck with that all morning and reckon i will keep that one on.i will get the prop balanced and see how that goes.once again thanks for the speedy reply and just reinforces why i joined a forum to get good advice from people who have been there done that
regards crabby