The Ark is still fine at these levels. Last weekend, we did Numbers and Fractions and had a great day (@700). Numbers is in more of the class III+ area now, not IV, and a great first time level. I've had fun down to 400 there.
Brown's is fine too, just a few more rocks in Zoom and the right line at Toilet Bowl is gone. (Did it once at 350 and probably too low.) I'll probably be there one day this weekend helping take two first-timers down.
I've done Parkdale and The Gorge in November and February at much lower levels (400 on The Gorge). Where they are now is still good.
"Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain