Here is a summary of the three polls (Two for Solstice and One for Sky):
63 Cars Reported
13 Pump Failures
For the NA:
>21% Failure Rate for 29 Cars
>83% of the Failures Occurred Over 50k Miles
>67% of the Failures Occurred When Driven Regularly
For the Turbo:
>21% Failure Rate for 33 Cars
>29% of the Failures Occurred Over 50k Miles
>29% of the Failures Occurred When Driven Regularly
This is still too small of a population to be meaningful (if anything ever could be) and by trying to fit it into a poll I realize that I did not get detailed enough information.
It appears that storing the car for months at a time increases the odds of a pump failure, but it is far from conclusive.
Sky NA 2007 Midnight Blue
Sky RL 2008 Carbon Flash - Naked