The better sit start for the Official.  Start down and left in the slopey mouth and go up and right on slimpers to link into the Official. A harder variation - Twister's Sister v11 - goes directly up rather than traversing into the Official.

Twister

Vin Diesel

Diesel

Premium

Official

Unleaded

One of the sickest looking boulders Ive ever seen... Starts low on small crimps, moves up and right to better holds, and into a sick looking crack feature. glorious topout. Get on this.

Start same as premium but traverse right and link into the top of diesel. 

Start with the left hand as low as you can* on the arete, and right hand on the juggy sidepull. There’s an obvious foot centered between your hands. Get up to the huge well-chalked shelf by way of some of the intermediate holds, match on/near it, then throw out left to the top arete and top out. Probably the most difficult part of this problem is not dabbing your ass on your pads.* There are two distinct chalked sections down low on the left arete. Some people may start on the higher of the two. My vote is always to start as low as possible (and thus, here, to make your first move be a a left-hand bump to the higher part of the arete), but do whatever lets you sleep at night, it's just a rock in the woods.

Very cool V3 just to the right of Official V7. Very fun little problem to do as a warmup for the harder ones on this boulder, or in its own right. It isn't in any guide that I've seen, but I got the name through word of mouth.Bog starts on the super obvious jug rail (the one you use as a far right foot on Official). Move up to the big shelf, match on it, and use the small-but-good right hand gaston to gain the right arete. The key is finding the right toes/heels low around the blind arete to make all of this work. Top out straight up over where you started. 

A tension shoulder fest. From the same starting edges of Diesel, paste on a bad foot and stab left into a gaston. Come into a rail and enjoy an easier topout. 

The massive boulder that is steeply overhanging on basically every side.

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Routes in Diesel Boulder