Here is the description of the Mont Blanc summit from Italian side (Courmayeur) in July 2013, we were a group of 3 persons. Joel was the guide and lead.
Here is the description of Elbrus summit from South side, July 2015. We were a group of 3 persons. We ordered an extra guide to come alongside us on the summit day to minimize risks, otherwise I planned the trip independent from any expedition company or similar.
Photos from Prune's blog (Elbrus). It's me to the right :)