I don't like the idea of extrapolating Rice's FC bowling average to tests. Fast medium bowlers often produce some excellent averages that don't translate to test level.
While it's difficult to extrapolate from Procters FC to test level, his achievements are immense, and I don't think it's fair to compare Imrans test record to his FC. Far more RPM. Less WPM, but heavily influenced by the fact that he was playing in an era of 3 day games, plus the fact that he played a big stretch of his career post injury bowling spin, which balances against Imrans batting allrounder phase. Its a stretch to rate Procter equal to or ahead of Imran, but not to imagine he could have been.
While it's difficult to extrapolate from Procters FC to test level, his achievements are immense, and I don't think it's fair to compare Imrans test record to his FC. Far more RPM. Less WPM, but heavily influenced by the fact that he was playing in an era of 3 day games, plus the fact that he played a big stretch of his career post injury bowling spin, which balances against Imrans batting allrounder phase. Its a stretch to rate Procter equal to or ahead of Imran, but not to imagine he could have been.