I have had troubles doing HD after I updated my base to lvl 9 too. The troops level and numbers increase is hard at start. But now, when like half of my turrents are onlvl 9 too, I am doing 20% HD regullary (while I have 2 turrents being upgraded almost aways!).
So, it just need a bit of time to upgrade your defense
Empire HQ9, 16 000+ medals, living mainly on ErKit.
Contrabant addict (Sentinel @lvl27 (cap), Opressor @lvl18).
Proud leader of FirstLorder, causal, yet active squad.
We accept active causal players interested in improving theirs skill.