OK I believe you.
Back on topic:
The unit radius: The low number on hoplites makes them fight fight tight and that is ok by me. But should principes, ensiferi etc fight equally tight.(hoplites 0.23, principes 0.24). I dont think it looks good. For principes 0.3 is enough I think.
The battlespeed: High attack, low defence and little delay makes for pretty fast battles. Because of the speed of battles hoplites doesnt seem to lose formation. If we slow the battles we might see some more broken lines and enveloped flanks.
This could be done be increasing the delay by 15-20 points for all
or increasing defenceskill.
Edit: I see ensiferi-units has no changed radius.