My preferred solution, in a situation where you've forgotten (or never learned/experienced) X, to keep doing Y until someone on your team perceives problems wit

My preferred solution, in a situation where you've forgotten (or never learned/experienced) X, to keep doing Y until someone on your team perceives problems with it, at which point you can acknowledge that you're not familiar with the reasons for Y and hence can invest some time finding out what they were why prototyping not doing Y.