i'd train the same way id train a sprinter that does the 1,2,3,4 like myself. In precomp before meets start i'd do 3 high intensity workouts.
1-Spe.End 1 ex. 4×150 full recovery 95-100%
2-Accel/Max V. ex.4×30 4xflying 30's 1-2×60
3-Spe.End II ex. 1×350 1×300
When meets start for mondays workout i would combine Spe. I and Spe.II and do something along the lines of 300-250-200-150
And keep Wednesdays workout the same and drop fridays workout. And later in the year id cut Mondays workout to something like 300-200-150.