Indeed they are legit tracks. Luke even "performs" a few of them at the Newcastle show broadcast on John Peel's show in 1997. They were released (unofficially) just after the release of Tally Ho !
Bryan Sykes
icq 73111005
bryansykes@earthlink.net
bls0322@mail.ecu.edu
The Complete Luke Vibert Discography
http://vibert.33-rpm.net/