Gunson's Colortune

I'm thinking of buying a Gunson's Colortune to improve my minimal ability to
properly tune my carbs. Any comments regarding this device would be
appreciated.

On the same topic, I have seen in online at "The Auto Experts" in Florida,
for $34.95, vs $52.95 at M%#S. has anyone dealt with these "Experts"? Any
other sources with good pricing?

Thanks in advance,

Doug Ingram
Victoria BC
1958 Sprite  (AN5L/636)
1963 Sprite Mk II project (HAN7L/30003)