Mike, great to read stuff like this........
I know that he did'nt want a payment but as a suggestion perhaps you could "sort out" a cheap/free engine dyno session for Guido's next project........
BTW I have seen an Es Cos drive shaft let go in a car park in Weston, I was about 15 feet away, a chap (Archie) was hooning his GGR "305" BHP Small Turbo car around, he then tried to do a launch at about 6 k RPM..........HUGE sparks and banging that was louder than ALS

when the drive shaft took out most of the cross-member.......it was dusk and it looked like a catharine wheel firework through the front wheel spokes