I think I need heavier weights. I have a set of Bowflex Selecttech 552s, and while they've been handy and space-saving, they max out at 52.5 pounds each. With Turbulence Training, I'm supposed to use weights that force me to max out at 6-8 reps per set, but without something heavier to heave, I'm not getting as much out of my presses and rows as I should.
So now, I'm considering whether to buy a set of Selecttech 1090s, which go up to 90 pounds each -- but they're more expensive than I'd like, and heavier than I'll probably ever need. Maybe I should just duct-tape some weight plates or small children to my current set of 552s. Luckily, I happen to have both lying around.