Thanks, Ray, glad you enjoyed it!
You're not alone in finding 6mm a tad small - as players' eyes age, you still get the mass effect, but people start to have trouble telling units apart or seeing which way they're facing. Nowadays I think 10mm is a good compromise between mass effect and identifiability.
As for 'completing the bases', I've nudged Mark a couple of times to do it and even volunteered to flock them for him myself, but I think he likes them the way they are ...