is there Thomastik Spirocore 5-string set for upright

[Dannn]

Question,
I have a 5-string Allegro upright [www.bsxbass.com],
there is a rumor that spirocore strings on the Allegro will sound great , the thing is I can't seem to find such a set-
5-string Thomastik Spirocore set
(I'm looking for a set with the low B string)

If anyone have a 5 string upright or some knowledge on the subject
Please help me with the details of the appropriate set..

Thanks

[salcott]

Thomastik makes both low C and B strings for the Spirocore sets. You should be able to get what you need from any of the mail order dealers like Gollihur or Lemur.