Ya I've also talked with spenda quite a bit about this concept at grinderschool. One thing he emphasized is to remember that you are also going to induce a lot of bluffs by manipulating their range so it takes some time and practice to really narrow down their range with the info that comes on the turn and river. Be prepared to be put in some much tougher post flop spots by doing this. Hint - nits almost never bluff, make hero calls w/3rd pair against the lagtards not people who are tighter than yourself.