Gents - all v useful feedback.
The a/c is on a permit so I am not restricted to STC modules.
The old unit had 4 CHT/4EGT and by turning a 4 way switch allowed one to see what each pot was doing - it works well but I hardly ever change the cyl as #2 gives me a "consistent reading".
The fuel guage on a Pitts S2A is less that perfect, so I tend to time flight time by stop watch and last calculated average consumption - one tends to err on the safe side.
Recently, £3k ago, I had to replace the camshaft and whilst currently putting the beast together again wondered if a modern analyser with fuel flow would benefit me.
Keep it coming, folks.
Thanks
Stik