I think so.
It seems that a tad smaller kites works "better" for general riding in marginal conditions, and even some racers use these to an advantage too sometimes.
They are easier to keep in the air, generate the very same or even more power when looped, so you can get "up", which is the main issue in light wind, and are soooo much better to handle in terms of jibing and turning and doing tricks, and can be flown in sinus in extreme (low end) conditions.
Racers might use the biggest possible kite in light conditions, to get more upwind power, but that is a totally different issue than "general" riding IMO - and as said, it seems that most racers still use a number smaller (max) kite even in marginal conditions (compared to old raceboards).
The Chrono should have at least the same power as your 18m2, and perform and "hang" much better I think