I am wondering if perhaps short waxless (fishscale) classic skis might be better in these conditions. Easy climbing saves you energy, slower downs keeps your sanity.
I saw one Finn waxing up short Revolutions yesterday, so you could try them. The long course had a 1 km leg on flat wide trail which would have been slow. Also saw some classic skis.
Sharon used to do a lot of ski-o races on Revolutions, I think the ones with fishscales. Also Harold Mannel from Germany used to race a lot on the skating model. I tried them some but was never convinced they were a net benefit. The one thing I think they win at is steep narrow downhills where they're easier to get into an effective snowplow. Logically you would think they would also win at steep narrow uphills but I was never convinced they were any better at avoiding catching tips in the soft snow on the sides.
Sunday’s Middle was a change at 95% wide open trails. Definitely a race for regular race skis.
The one short drop where I sat down I went back later and skied down around the blind corner with no trouble. That had easily cost me 2 places in the race. More practice and confidence are in order.