IMO this is an issue with string manufacturers, not the bass. It's difficult to wind strings with all the different brands of basses available with different heads etc. a longer bridge plate (badass) or string through will move the small part of a B or E closer to the nut; e tuner is closer to the nut in my Fender than my Gibson G-3, etc. I guess the only solution would be the string makers testing products on every bass made in the world; not possible. We have go experiment and find what works to our application. It's better now with TB we can get opinions and help by asking before we open our wallets. In summary, your bridge position is fine where it is. A bass takes more tweaking than a six string guitar. Bigger = more variables.
'73-4 Ampeg V4B, Ampeg PF350,PF115HE, PF115LF, 115 Traynor, 1962 Fender Jazz, 75 Gibson G3, '10 Squier VM Jazz, Squier CV 60's P Sonic, Squier CV 50's P blonde, Epiphone Thunderbird IV