I've just started my upgrades for th9. I find myself boosting barracks quite a bit to do Barch attacks to gain the gold and elixer I need for the upgrades. This does generate quite a bit of DE, enough to keep one of my heros going. However with the build time for all my buildings, I can be using this time to focus DE farming.

I'm currently hovering around gold as barching here is great (10 mil gold and 8 mil elixer made tonight in a 3 hour boost session, used the last hour to practice GiBarch) so I don't want to have to change leagues.

I've tried GiBarch, however I've come across too many problems with it. The main being, for it to be successful it relies on having spells available once you're in the core. During boosting sessions I find I'm wasting a lot of time waiting for these spells. Without the use of hero's too it's proving to be very difficult to funnel enough DPS in to the core to grab the DE.
I can't super queen as I'm working on constantly upgrading her.

In a 2 hour boost session I made around 20k DE tonight all from collectors. Just curious as to whether there is something more efficient than barching while boosting my barracks.