I bought a brand new 4003 a few months ago. During the first day I was really impressed with the strings that came on it. Within a day or two though they began to wear... fast. By the end of the first week they were a few days past dead in my opinion.
And so just like most other people, I wasn't sure where to go next on this particular bass, so I bought a few sets of these strings. Same $**t different pack. Seriously disappointing for lots of reasons - the bass is SO killer and they lock you into using these strings, other "normal" pack strings do not fit in the nut. Need to modify it (BTW good luck finding THAT nut slot file!) and well if you find an issue with your truss rod a few months down the line good luck with that warranty.
An Thomann... what does available "on request" mean? YIKES. The only strings that fit a bass guitar that you sell is only available now on request? Sad. You should at least stock them as a courtesy to your customers that play these basses!