Having read up how accurate these German made strings are to the flatwounds that were standard issue on 4000/4001 models in the 1960/70s, I bought a couple of sets. Unfortunately the tension is a bit too high for my knackered left hand (its definitely more tense than TI flats, which I previously used, and feels more like a 'standard' flatwound such as a Chrome or La Bella 45-105). The gauges are 45-57-77-100.
One set is brand new and unopened in the packet, the other has been on my bass for two days and the ends were trimmed for use on my Ric (note: on removing, some of the silk immediately fell off the tuner end of the G string, grrr, though its 100% usable). A Strings is the cheapest UK-based retailer and sells at £47.99 per set. So how about £40 30 posted for the brand new set and £30 posted for the briefly used set?