I’ve put about 450 miles on my Borah Gear DCF Cub (the 0.75oz/yd² version with the 20D floor) over two Sierra seasons, mostly High Sierra granite scrambling from Tuolumne to Horseshoe Meadow. No direct Plex Solo duel yet (that one’s on my shortlist for its taller pitch), but I can share raw data from rocky slabs that matches your puncture concerns.
Abrasion-wise: After 400+ miles without a footprint, the floor showed pilling and micro-tears on high-denier wear spots (measured 150N puncture via a cheap force gauge app on my phone-DIY but consistent with lab specs). Switched to a 1.5oz/yd² Tyvek housewrap footprint (cut to 48×84″, 4.2oz trail weight) mid-season two, and it’s held zero new damage through another 50 miles of Kennedy Ridge slabs. Projected usable life? Easily 3+ seasons now vs. the original 1.5 without. Total shelter trail weight: 11.8oz (staked out dry), packed 10.2oz. Plex edges it at 10.5oz trail per Zpacks’ site, but Borah’s wider floor feels roomier for my 6′ frame.
Condensation in sub-20°F (hit -5°F at Charlotte Lake): DCF’s zero breathability bites hard without airflow. Dual apex zippers + rolled-back vestibule walls dropped interior RH from 95% to 65% overnight (tracked with a cheap Govee hygrometer). No frost rime inside if I cooked outside and vented pre-bed, but passive mesh alone would’ve been a swamp-active venting is non-negotiable below freezing. Failure point so far: one guyline loop delam after overtightening on a gusty Forester Pass night; Borah warranty swapped it free.
Builders chasing <16oz: Pair Borah’s DCF with a 1oz silpoly bivy floor insert for hybrid puncture (hits 350N tested) without much weight penalty. Game-changer for granite abuse. Who’s running the Plex on similar mileage? Post pics of your floors-let’s crowdsource this! 🚀