i called Tyson Gay way before he got busted. that was based on his pattern of very fast early season form, sporadic appearances, untimely injury claims and an inability to improve substantially on early form in big events. the only ones that got away in recent times, i think, were maurice green and carmelita jeter. i dont think this is slanderous as its just speculation, but Jeter has a purple patch after years of being an also ran, and green competed smack bang in the middle of Balco, was associated with people who did get busted, and heresay suggested he and Boldon's falling out was in part due to him breaking a pact.
but you just have to put faith in the testing as really we have no proof so its really just opinion based on indicative but nonetheless completely circumstantial traits.
I dont think Kishane's physique is a red alert at all. if anyone's physique suggests steroid use, its Omanyala but those types of physiques are entirely possible by a small % of natural athletes so on its own it means nothing.
Compare these guys to the fully tested life long committed natural bodybuilders and these sprinters are tiny.