I did a full day without issue with cold. I just put a pair of gloves on but by 11am they weren’t needed.
NWH you’re embarrassingly deluded if you think you’re achieving any better results than someone working with cold water.
Yes it may be more comfortable on the hands, it may even keep you working the one day every 3 years that temps reach -4° in the daytime, but to say you are getting better results is just making yourself look a bit silly.