I start a few cutting in December and they have been slow at rooting. Some developed mold on the top of the cutting and some others around a few nodes. I didn't want to use chemicals and I know the UV in sunlight kills mold. So I decided to experiment. I used a magnified glass and concentrated the sunlight on the mold and zapped it. Worked well.

that's why rooting toward spring works so well. you can move them out once the night temp hits 50 and sunlight and fresh air will take care of the molds.

I agree, I will wait until Feb-March to start cuttings.

I'm starting mine early March. Too many issues with starting too earl.

I rooted in January last year and it was fun, but challenging.  Fungus gnats, mold, space, lights, etc.  I only have a few to root this year, but will be starting in March to keep things as natural as possible, meaning sunlight and outdoor temps.