Could this "spritzy aftertaste" possibly be carbonic bite?
Are you sure you're not over-priming/carbonating??
Probably a good idea to post up in more detail the recipes, exactly what you are doing when preparing the wort, pitching temp, fermentation temps, length of primary, bottling or kegging procedures, Conditioning time and temps etc. etc.
That'll make it easier for people on here to help you out.