This is what I've got at the moment. I'll have to turn the gear wheels in different directions to expand (or contract) the shoes. Hard to remember.
If I flip one of the adjusters round, then turning the gear wheels in the same direction will have the same effect - e.g. flip the RH adjuster so that the gear wheel end points towards the boot and pushing the outer cogs down will expand (as per the LH). Down is out, both sides - much easier to remember
. But it means taking one of those pesky springs off again
.