Winter flying?, yes you can, if you are in doubt? here you get the definitive evidence, one video with Klaus from Denmark flying the TZ V2 90 aka JS 3D Frenzy 90, in -5C.
Next video is Tom-Erik from Norway flying the Raptor 90 SE at -19,5C a night flight and it is a short flight maybe because his fingers are freezing :)
Klaus from Denmark flying the new Frenzy at -5C, me like the Frenzy :) i want one.
Tom-Erik from Norway flying his Raptor 90 SE at extreme conditions.