Hard to tell where the exact "summit" is....
There is a large outcropping of crumbly basalt on the south-eastern part of the top of the dome....I would consider this the tippy-top.
This short 20 foot scramble yielded absolutely gorgeous views, west, into the inner basin...most likely the best IB views one could find since you could see all of the peaks and summits at once.....as well as San Francisco caldera in its glory.
are the best time as it is VERY crowded on Sat. and Sun.