The Dorsal Fin 

BBBBBBBBBURLY!!!!!!!!! throw an extra pair of shorts in your pack...you may need them after the 1st pitch. Amazing...and very beautiful. A fine tribute to those hardmen of yesteryear!

One of the best routes I've done anywhere, bring your slab mojo and freshly resoled shoes! You gotta wonder how the FA managed to stick to that mirror... Balls of steel were most likely a part of the equation!
The crux on P1 is quite spooky and peeling off while getting to the chickenhead would be sad. I felt like there was another slightly easier crux above the 2nd bolt when traversing right into a groove. The start of P2 also feels a little runout with a bit of exfoliating granite to keep you on your toes, but once you get in the crack above it's pure goodness to the top. Check out the antiques pounded in the crack, there's some creative stuff in there!
I placed a whole lot of nuts on the upper part and micros + cams up to #1 I think. Long runners help on the zigzagging 1st pitch. Wear long sleeves if you've never done the approach, there's some gnarly brush to trash through if you wander. Leave the packs at the sandy platform described in the approach, the scrambling to the base is quite tricky. We hauled the packs up there and had to rap of the huge dead pine to avoid downclimbing this section in the dark.

Note: the two Lost Arrows on the second pitch are lose and should be trusted. The pins should be replaced with thicker Lost Arrows which will maintain the historic aspects of the climb. (I.e. do not replace the pins with bolts!!!!!!!!).

I think you meant "shouldn't be trusted".

Next size larger pin, and then what? Next size after that? A bolt makes more sense in the modern age, and, will limit piton damage to the rock that's obviously going on.

A pin is only "good" for the person who placed it. After awhile they all turn into junk. Only the FA gets the FA. After that, well, maybe these classic routes should be maintained with gear that makes sense, not bigger and bigger pins which will continue to rust away and get loose like the previous ones.

No one is doing that route in the style of the FA folks (huge kudos). To expect folks to carry a hammer and pins on an established classic free climb is kinda silly. Scared silly. Ha ha. Cheers!

Maybe if the arrows are cleaned properly (without much downward hammering), some decent small nut placements could result. Just an idea, I can't remember those pins or the crack they are in, so it may not work, but maybe worth a shot.
Better a decent small nut placement than a pin or a bolt.

Micro cam might work too in a large enough pin scar. Especially a fat lost arrow.

I recently climbed this magical route for the second time and personally believe those pins are not a big deal. By the time you get to the second pitch corner, it feels like 5.0 If those pins are really loose try to tap them in. If the pin remains loose, pull it and try to fit a nut. If a nut doesn't fit, send a new pin home. Bolts should never be added to this section.

SN

I climbed this today, the best climb in the canyon. Proud send in hiking boots. I checked the first piton on the 3rd pitch. It wiggled and I pulled it out really easy. I would have replaced it if there were not a fantastic chicken head to girth hitch. This does not to be replaced, the chicken head was better than any piton. Not to mention forget the PG13 rating does this mean i have to check with my parents before I climb if Im under 13? George didnt rate it PG 13. LONG LIVE THE WASATCH!!!!