I have never had the opportunity to play a five or six string upright, EUB or URB, and I am curious as to the restraints on arco technique, particularly with six strings. Of course, there are numerous five string players in the major orchestras, but would the addition of a sixth string unduly inhibit the bow? Are heavier strokes such as detache or Brahmsian spiccato more difficult with the narrower string spacing? I have heard that EUBs in general have less resistance to the bow. Is this true? I have heard some talented gamba players on 7 string instruments, but the lowest note was an A (equivalent to the open A on the bass). Any comments would be much appreciated.