Bingo. I like Kincos - once they break in - smaller zipper pulls are easy to manipulate, even those in awkward spots like pit zips, etc... A good way to break them in skiing is riding a rope tow or just raking leaves in the fall before ski season.
You pretty much have to snoseal or use other wax on kincos at least a few times to seal up the stitching. For all leather models like a 901, You can get away with resealing them as infrequently as every 40 ski days. But they tend to absorb water a bit once the wax starts wearing off. With more frequent waxing, every 10ish ski days, water will bead off them reliably. But this does reduce breathability. The less often they are waxed, the more breathable, so how often to wax is a decision that you can dial in based on your comfort levels and local weather. What I usually do is wax them at the start of a season, and then top them off when a big storm is coming. I have worn out one pair of 901s in 4 seasons. So durability is there.
Insulation is medium. I have found that as long as I keep my arms warm, my hands never get cold in these gloves. If it is 5f, greybird, and/or windy, I will usually switch to a more well insulated mitten though. The 901s, are ok for resort skiing up to about 45f without getting too sweaty. So the insulation works over a wide range of temps. Above 40f and bluebird, I usually just go with something like this
https://www.marmot.com/sale/men/accessories/unisex-basic-work-gloves/AFS_785562619395.html.
Gore-Tex lined gloves don't breathe well. And the membranes seem to break down after a season or so with small holes that let water in. The Kincos are inherently more breathable than a membrane and can be resealed again and again and maintain that water resistance as long as the leather shell holds together. Also you can wax them less (ammount or frequency) and achieve a level of breathability while maintaining enough weather resistance for 1" an hour snow. Compared to a typical goretex ski glove, the all leather kincos are both more durably water resistant and more breathable. This leads to greater comfort over the life of the glove And they achieve this at a $35 pricepoint.
These guys seem to have the right idea.
https://www.freethepowder.com/pages/breathable-ski-gloves
Learn everything about ski gloves. A comprehensive guide to design, materials, water-proofing, leather, insulation, and the rest.
www.freethepowder.com
How to Keep Your Hands Warm Skiing- Stop Cold Hands! Guide to gloves and mittens. Helpful strategies to make your day in the snow more enjoyable..
www.freethepowder.com