I love the filter/screen sandwich - screen, hemp filter, second screen on top for my SS or Ti tips, but I would definitely not recommend it for the glass bowl of the OG Vapcap.
The filter in the screen sandwich needs to be changed every month or so. I think that the less tinkering with screens in the OG the better. No sense taking chances with breaking the bowl if you don't need to.
@Ratchett makes a really nice leather Vapcap pouch. It has a magnetic snap closure that also holds your Vapcap. It can hold any Vapcap, even the XLS model, a stash tube and a narrow cylinder shaped jet lighter.