I guess I am quickly descending into the classification of old fart: Yea, I have been on the river at 10,000 through the gorge, and it was awesome. Big Water/ huge waves; but also pretty much a straight shot flush through the lower whitewater. I think we finished to the takeout in less than three hours making the shuttle longer than the run. One thing to note, and I mean chisel into your hard drive: Stay right at boulder garden or you might be cleaning your boat. A ledge hole develops there that is Biblical in proportion. I was the one not paying attention to this advice when I ran at that level. It tends to sneak up on you at that level. Through a sequence of events which I still do not completely understand, I mangaged to extract myself without too much damage, but looking up as I recovered certain body parts floating by, I could see someone spending some time in there. Just look at it at low water, and you can begin to imagine the rapid with those rocks covered. It does not look like it, but a relatively easy sneak develops on the right, but ya got to start over there as I had a fast boat and descent ferry angle and still could not get over in time.
In fact, as a general rule, if you are feeling lost between giant haystacks, head right in the gorge.