Well if it's true that virtually all top runners have cheated whenever they've had the opportunity, then I couldn't care less whether or not Ovett doped. If he 'knew' that for example Walker and Scott and Bayi were doping and he had to as well in orer to compete, then fair enough. Similarly if Coe knew Ovett, Walker etc were doping and had to do the same. It just seems implausible to me. Cases like Aouita seem to indicate that there were a few obvious cheats, but until the EPO era, generally there just wasn't a culture of doping in middle-distance running. Aouita was obviously on some special new sauce from 83 onwards, and if so, why couldn't Coe, Ovett, Cram get hold of it? Cram, for example, did have his best season in 85, but there was nothing surprising about that given that that year (and 86) was his most injury free season and he was just about at his athletic peak after clearly rare talent demonstrated since he was a boy. He didn't suddenly stat running sub 13 5Ks as well and brag that he'd win gold at every event from 800 to 10000.