keeping track of selections in Picker using Swift

I have several pickers in my app and I want to keep track of the selections of each picker before seguing to the next viewcontroller.

Only after each picker has selected a satisfactory value do I want the current viewcontroller to segue to the next in the sequence.

I tried to use an if statement that evaluates if all pickers have selected a satisfactory value before segueing however the Swift Compiler tells me that evaluating the conditional is too complex to complete in a reasonable time.

I tried to use a simple counter but the Picker seems to trigger the counter when an acceptable value is passed or chosen temporarily but then an alternate value is chosen as the final choice. I cannot seem to make the counter in the Picker code recognize that a new alternate choice was selected and then reset the counter appropriately.

Any helpful suggestions? thanks for your time.

--- Post Merged, Feb 11, 2017 ---

After tinkering with the pickerviews and removing all performsegue code then i was surprised to find that after all pickers have chosen a value (whether it is an acceptable value or not) then the viewcontroller segues to the next viewcontroller in sequence. Is that supposed to happen? Is that some feature of pickerview?