How many VPs do you have and what bases are on your map? I am in the range 900-950 VP, XP 61, all troops and all LCs maxed out, TD 53%, TD 47%, GBE 90% without boost and I mostly attack players with RZMC 3/2/2/1. They usually take down maxed out bases with up to two boosted ice with no problems and without boost. If there is more boosted ice then sometimes it is difficult to beat them without boost. As I no longer keep RR statue I prefer to take all of NPCs without losses at all and so I usually burn them with 4 sco.