well all i can really tell u about technique as far as plyo's go is for running, keep a low center of gravity, dont clench ur fists or teeth, and make sure that ur arms r pumping straight forward, as probably 9 out of 10 people will pump there arms side to side somewhat when running. it kinda feels awkward at first, almost like ur pumping them to the outside, when in reality u will be going straight forwards and backwards with them. with the dot drill, i would say just keep going at it, work on the switiching portion of it the most, like when u switch from doing both feet in the hourglass motion, to one foot in the hourglass motion, its these transitions that really tend to slow people down. i would say once u get to a time around 45 seconds on the dot drill, u r doing pretty damn good. obviously for platform jumps, just try to increase ur reps for each timed session that u do. if u decide to incorporate some o-lifts into ur training (which i highly recomend), make sure u have a good coach to show u how to perform them.