I've got a question regarding swapping out strings: Since they include free setups for life when you buy a bass thru them, I had BassNorthwest take the Black Beauties off & put some DR Flats on it. Since then I've swapped those flats for the GHS Precisions (at home, with ease), and soon I'll want to swap these for a set of GHS Boomers I have. My question is how much tweaking am I likely going to have to do regarding truss, saddles, etc when I make the switch to the Boomers from flats? I'm still learning about different string qualities and how to do my own setups. I could just as easily take it to BNW and probably watch while they do it for me. Thoughts? Bass is a Spector Forte-X. Flats 55-105, Boomers 45-105 mediums. And yes, I have watched & bookmarked several setup guides.