What I feel Pickering needs are some legal enhancements to his overall sprint ability, not withstanding corrections to the mechanics of his sprint.
Two things: a real olympic lifting coach to train him in the snatch lift. Why? because in studies done on olympic athletes, the olympic lifters of comparable weight to the sprinters had a faster 20m time, as well as a better vertical jump than the high jumpers.(rome, 1960)
By learning the snatch lift and training his system to get under the bar faster and faster he recurits and subsequently enhances his explosive power.
I see that some sprinters do a power clean, but that misses the explosion development. The Snatch Lift is the only lift to really develop this. Someone like Alexseyev who speaks english.
Second: he needs an ifbb level coach to teach him some legal tricks to drop his body fat and enhance his muscle density.
The best method for that ( and my friend just got his ifbb pro card this fall): as part of his training ( and nobody should do this at home)
He used insulin with a particular type of whey protien isolate as follows: one day of insulin injections and his whey shakes, and protien. No carbs> the next day regular protien/carb small meals.
in a week he went from 10% body fat to 5% and his muscles became super full and hard, because he could starve carbs every other day and still have the energy of a 5500cal diet due to the fact that the insulin/whey protien isolate combo tricks the brain into really using the body fat for energy and not getting run down or flat looking.
As i said, nobody should do this at home without a pro coach/doctor monitoring.
the fact that his body became hard and full and his fat decreased, while not tiring enhances his physique, while translated to a sprinter one can peak by having less weight(fat) and more strength with fuller muscle heads and a better nitrogen balance.
If Craig were to become knowledgable about the snatch lift and legal fat reduction/strength,getting real pro's to coach/guide; him at peak times he would mostly break 10.00 and sometimes dip in the 9.88-9.92 range