For effective utilization of developed code and also proper testing of code .... there should be 3-4 commits per week. Otherwise there is toooo much pressure on developers to complete commits.
lol, for a project I'm working on we just commit whenever. Sometimes I've commited almost 10 times in one day.
Sometimes I commit once in the month 
then development is going very slow 
Mr. Mispunt ...
I have different views on number of commits and speed.
I feel commits & development speed has no direct relations.
Number of commits entirely depends on the development stage of the package and complication level of the logic.
For last 8-10 yrs, I do not encourage my team members to commit more than once a day unless its very very essential. And every team member commits ( normally ) at a specific time. And my team has rarely crossed the deadline. And over the period we have realized that, less commits has not affected to completion of the assignment.
You style of working has to equally good, as you all are achieving, what you have planned. I have all praise for you all !!!
(I was not interested in distracting you all, so I was not replying. But, I am replying today because there are no commits for last 2 days.)
