i just barely started the 5's and i was wondering how many sets i should do on the isolation exercises? i only have 3 iso exercises- close-grip bench, bbell curls, and dbell shrugs. during the 15s and 10s i only did one set per iso exercise and on my first day of the 5s i did 3 sets on the compounds and only 1 set on the iso's. should i stick with the one set do something more like 2 sets on the iso exercises? hst ftw!