why 100?
why not 101/97/56 - it's crap.
goudy, the dense feeling you are feeling is just more blood remaining in the muscles and perhaps some enlargement of blood fibres and glycogen loading, especially seeing as, to date, your focus has been on heavy weight and low reps.
good to see you are rehabbing well and i believe your legs will get bigger from aforementioned but, as others have said, you'll get much better development with the blood products from heavier weight and more sets.
in fact, i am of the opinion that you should be aiming towards increasing the weigt as you rehab and forget about the 2-8 minute thing. it makes no sense whatsoever. it's just a stupid goal made by some masochist.