Dingus McGee's guide book rates this route 5.6. I thought it felt a bit stiffer than that. Big quartz knobs gradually become smaller and slope the "wrong" way. A couple moves between bolts 4 and 6 make you concentrate... just as the wall bulges a bit... hence "my" grade.
As you approach from the West end of Far Downs, "Of Quartz It Goes" is the third bolted line you encounter on the North Face of the formation. NOTABLE LANDMARK: You must scramble up a small "boulder" to find the start of the route.
The first couple bolts call for quick draws. However, I would recommend shoulder length runners for the rest of this route as it wanders quite a ways to the right... and then back left to the summit.