Yup I drill a thousand holes in my hyfax so the snow packs in and it allow for constant lubrication.In addition to the work you suggested, one really old trick from the 1970's is to run a 1/8 inch wide/deep groove in a set of new hyfax on the table saw before installing them. Snow and sometimes ice collects in the groove and helps lubricate the hyfax. It helps in low snow conditions, and back in the day helps the hyfax stay cooler when oval racing.