Is it just me, or does the Mini 2.1 require a harder button push? Or is it the battery size (I'm using an 18490 Aw IMR)? It seems to get the full fire I have to push pretty hard, which activates the spring. So essentially I'm squonking the juice and the battery...lol. With my Grand it's a much lighter press to get a full fire. Also are there button covers for these?