Replying to Superfeet?

I realize there are multiple threads involving superfeet insoles in boots but none of them really answered my question, so please don't come back saying "Use the search bar n00b".

I bought some superfeet (the black, skinny ones) because my SPK Kreation insoles were too flat to support my foot well and I was getting pain. So I put my superfeet in and skied them for a day but due to the thinness of the superfeet under your toes and around the ball of your foot (this is consistent with all thicknesses of superfeet), I suddenly had wayy too much room in the toebox of my boots than I wanted. It seemed to hurt the responsiveness of my boots as well as my skiing in general.

So, I thought I'd put the original insoles back into the boot and then put the superfeet on top of those. Doing this obviously solves the problem of having too much room in my toebox and it's pretty comfortable but something just feels off. I was wondering if anyone has had this problem with their superfeet and/or knows a solution to filling up the space in the toe box while having superfeet in?