Personally I use both the Pink Zap and Green.
With the pe, the pink is used mostly on my bench due to it's extremely thin water like consistency, if too much is placed onto an item, it can be wicked away with a piece of paper towel.
I find the Green useful on pe parts such as small 'boxes', or even crosshairs where you need a little more 'hold' at the base, but I dont find it too useful for items such as seatbelt sashes, or attaching panels to flat surfaces due to it being 'thicker'.
The pink is also useful for joining fuselage halves, or tank hulls, where the fit is not quite 'spot on', this stuff will flow along the join and hold it in place perfectly giving you time to place your normal plastic glue where it's needed.