Brand new to this forum, I've been researching HST which lead me here to this thread. Those of you looking to use HST need to read this site:
http://www.hypertrophy-specific.com/hst_index.html as already mentioned above. This thread also helped me:
http://forum.bodybuilding.com/showthread.php?t=280813
Most importantly you need to establish your max weight for each 2 week "rep block" (15, 10 and 5) before you can start HST. As the routine calls for you to progress between 5 and 20lbs each workout to get to your max weight by the end of the 2 week "rep block."
For example, if my max bench for 10 reps is 185lbs. My routine would be as follows:
Mon: 2x10x160
Wed: 2x10x165
Fri: 2x10x170
Mon: 2x10x175
Wed: 2x10x180
Fri: 2x10x185
Although the example on the HST site listed above rotates bench with dips every workout but hopefully this example helps, keep researching so you make sure you are doing the routine properly, I know I will. Good luck.