Good morning, new Kala U-Bass owner. I've played guitar for 40 years, never really tried bass until Christmas when Santa left an acoustic U-Bass. I love this little U-Bass. It is fun to play, and I'm looking forward to recording with it and playing out. I'm strictly a hobbiest and amateur musician. My only complaint other than a lack of talent is intonation. Especially on the D and G strings. It runs 1/4 step flat at each fretted note. Pressing harder or even bending a bit seems to have no affect at all. These strings just seem to keep on stretching when fretted. They're the black standard strings, which I presume are Road Toad Pahoehoe. The E and A strings are much closer for intonation. I'm ready to try some different strings. How are the Aquila Thundergut and the Pyramid Silver Plated Copper Wound for intonation?