Spectrum13

Bridge Type Approx. Length ABR‑1 (ABR) Shorter, narrower footprint Vintage design; limited saddle travel; lighter. Nashville Longer, wider footprint Modern design; more intonation range; larger body and saddle slots. Farber is ABR-1 sized. You can also top wrap the stop tail for better clearance, but the disadvantages are scaring the surface and if your style has your palm scraping over the strings, not too comfortable. Nashville bridges are physically longer because the housing is wider and the saddles have more room to move. ABR‑1 bridges are more compact, which is why vintage Gibson spacing and post locations differ from Nashville-equipped guitars.

On that note: I don't understand the primes of the posters question. I have a natural fret of being tackled, but can't quite wrap my mind around tackling a threat. Superbowl predictions?

Did not see a 555 on Daves sight. Might be mild goose chase. Could only find at Heritage factory and Sweetwater sites.