It's a slide. The less people, the more powerful your hands get. I know you generally know how to value your hands with 10 people. Now, when HU, you can raise anything connected, suited (within reasonable limits), pps, and anything with an A or a K. So there you have both extremes.. now when the amount of people decreases, you just "slide" from the tight range of your usual 10max experience towards to loose HU range I just described.

Good luck