Difficult to say if it was a representative test as the Silhouette that Ivan was connecting to is a thousand faults that just happens to look like a car,
For 99% of techs not connecting to early OBD1 isn't a worry, and although the Diagun is great value for a vry powerful bi-directional tool with fantastic vehicle coverage for most hobbists spending 700$ (£600) isn't an option. I am sure some of the other members will pass on experiemce of tools for older GM particularly what might be available on the secondhand market.
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)
