Yeah the smaller activations idea has been something I've been running with in our last few games. The only units I've been beefing up lately have been my Inf Companies. I've realised that sticking 23 stands of Inf on Overwatch on each objective is a nightmare to both maneuver around early game and (as long as I can silence his Whirlwind batteries) can be quite a task to shift (crossfires not withstanding).
In the end the Baneblades had to go
Since dropping them my opponents have been struggling to adjust their Thunderbus target priorities and, generally, havent found such worthy targets elsewhere. It's usually harder to kill my HQ to a man in one assault than it is to delete a Baneblade company. I haven't tried Ogryns yet as, without the BBs, I'm struggling half the time to 2nd guess my opponent's target so without sprinkling them everywhere they'd probably get avoded at the mo (which thinkng about it could also be a good thing....)
Thanks for all your help so far guys. In my latest games I havent been proverbially cowering from the sky as much as before, which has been a pleasant change to say the least