Hi Freshleaftea. Welcome to Geekhack.
That cap set isn't going to fit your K95, if that was the intention. Corsair uses a non-standard bottom row. You can make most of the caps kind of work though, including notching a standard-size space bar to fit.
What switches have you tried? Which are in the K95? It sounds like you may be interested in tactiles? I imagine blueberries are very nice, not a tactile guy though myself, so no idea when I'll know for sure.