I got a baritone Uke and had to do some adjustments on the action and securing the tuners to the headboard because the screws were stripped. After I had done all the modifications and had the uke for a while I noticed the neck bows forward. I lowered the action so it is playable, but I can't enjoy it as much now that I always see the bow. When I fret at the 12th the strings are dulled. I am seeing heat and clamps work and the best source I have for heat is either a space heater or blow dryer. Anyone have success or know how to correct this?