Brilliant Lenny. After watching your videos and tutorials for around 10 years I have treated myself to a brand new Kala tenor Pacific walnut uke. I love it but the C string sounds dull especially at the 5th fret which is very thuddy with little resonance. I have been back to the dealer and he tells me there is nothing wrong with it. Someone suggested I fit Martin 600 strings to improve the sound. It has nylgut strings now. Can you give me any advice. Thank you.