Well it is all up to you, with the kind of kilting that you are doing sounds like you don't really need a 16oz Wool kilt, so if it's primarily for pub crawls or knocking around in then don't bother with the 16oz wool kilt.

If it were me and had my way they would all be 16oz wool. The problem is the weather conditions here in Canada it's a little too hot right now for the heavyweight wool.

In defense of 16oz wool kilts I have a few of them and there is nothing like it when I wrap one of my heavyweight kilts around me I sure know it, and in the winter you will be glad that you have one.

In the end though it's up to you in the light of your own circumstances, take a hard look at what you will be doing in your kilt, if it's going to be primarily pub crawls etc. then a PV kilt just might be the ticket.