After some discussion, as a general rule, if there is a holiday/pinball event conflict with the 3rd Saturday of the month, then the 4th Saturday will be the first choice. If there is a conflict with both the 3rd and 4th Saturday, then we will go with the 2nd Saturday.
As the guy who organizes the hosting and rsvps, the 4th Saturday works much better for me.
Also, it seems that the general expectation is 4th Saturday, if not the 3rd.
With all that said the April date has changed to 4/24. I do not foresee any reason that these dates would change from this point forward. Schedule corrected below:
April 24 * - Opening Night
June 26 **
November 20 - Tournament Night
* Meet the 4th Saturday due to Pinball At The Zoo
** Meet the 4th Saturday due to Fathers day