I use metal tip 2 too! I use that wilton silicon caps always I use Royalicing, and a icing bag ties from wilton too. No need to use a a damp cloth. The consistency enought to piping without battle with the bag and your hand it shoul run easy and soft. For use them next day I put them in a big plastic bag. Somthimes it is necesary to wisk it again, you will notice other consistency or separation of ingredients or your RI.