It depends how low a temperature you intend to fly in, yep you might need to richen up a click or two.

You'll find that engines need more winding on the electric starter before they start. So keep your field battery topped up. It could be worth using a fuel with more nitro content, say moving up from 5% to 10%. Some folks use a splash of petrol (lighter fluid) down the carb to get things started, not needed to do this my self.

Make sure you give your engine a good blast of full throttle just before you take off to get it warmed up properly. You don't want a dead stick on take off.

Also keep an eye on your flight packs too as batteries tend to loose capacity quicker in the cold.

As for the actually flying it is nicer when the air is colder. It feels more like the plane is on rails and you have more bite with your prop.

I find that keeping my fingers warm is the hardest part. I don't like gloves when flying as they take away too much feel and my flying suffers. So I tend only to fly for a few minutes at a time and then thaw out my hands. I'm tempted to try a tranny muff.

Nick