What's the best way to hold your bubble? I have located a bubble, put my lvl 4 at the gate. This is the second time (game) I done this on. The first time, somebody got past my planet, and blew my ports, and stole my ships. This time, I've put 85% of my figs in the sector on defence, and set the qcannon on sector high enough to kill scouts. I have the max mines too, but in the past they have always gotten disruped. I'm going to put a limpet in all the sectors of the bubble too, but concentrating on figs for now.

Is this best I can do? Is there a better stratgy?