As I understand it, the workout breaks down as follows:
WU: 450yd freestyle or backstroke
Prep set: 5 x 100yd where 50yds are drills and 50yds are swimming with a 15’’ rest between
Main set: 4 x 300yd as where 100yd = pull buoy/paddles, 100yd = pull buoy and 100 yd = regular swim. 30’’ rest between each 300yd set
CD: 50yds
For the prep set, what kind of drills am I supposed to do?
For the main set, is my understanding correct? Am I supposed to get rid of pull buoy or paddles every 100yds, but continue swimming until the 300yds is complete?
PREP: if you know where you weaknesses lie in swimming, incorporate relevant drills (swimsmooth.com is a great source for drills).
Main set: I know this can be difficult to interpret. I’ve usually done these like you say, starting with pull buoy and paddles, and dropping first pb after 100y and then paddles and finally swim without any. But I also know some people have done this with first full 300y with pb+p, second 300m pb, and last 300 swim, and then repeat one of those, but I think your way is the intended set. I quite like this way as it reminds me how much pb + paddles help with body streamline, and pull.