I have a Yamaha TRB-5II that I want to restring with flats. It has a 35" scale with active electronics. I am using D'addario XL's right now and have too much growl for my taste. I am new to flats so I have a question. Are there any flats out there that I can try that won't require a major change in setup (i.e. truss rod tweaking, I don't do truss rod tweaking)? I have to drive 70 miles to get to someone who does good setup. If there aren't any out there I can try easily then I will probably just bite the bullet and get a set of TI's or LaBellas and have the tweaking done. I have heard but never played flats and love the sound. Thanks for any help offered.