Brother Markus, without giving any secrets from my purchase of your ebook......perusing the "Future of High Intensity Training" I took notice that in the advanced protocol suggest three warm up sets using light for like 10, medium for like 6 and then the work set. Much like the old Delorme protocol.
For the "Over 40" protocol no real suggestions made regarding warm ups. Do I need three warm ups per exercise? I find one at like 50 to 60 percent of targeted workload to suffice but I'm open to your suggestion(s).