EQ has a long detection time which could be a problem.
Post BALCO it seems the top sprinters are on steroids, GH and slin- I used to thing GH and slin were BBs only and wouldn't benefit a sprinter.
Furazabol would give the instant boost as it boosts the CNS but presumeably when you compete you'd be off cycle?
Trenbolone and Primobolan would give power whilst keeping fat levels low (Detection time about 5 months), Sustanon would be good long-term physique changer (Detectiontime 3 months), Propionate offers quick gains and clears the system fats (1 month).
As a rule the orals clear the system quicker. But surely something stronger than a winny only cycle would be best? Anavar for hard gains, but Dionabol is good value, a good msucle builder, and once the sprinter comes off cycle and loses the water retention should see a benefit.