I went through the same checklist and landed on the PowerTraxPRO MX. It's a powered retractable cover with industrial-grade aluminum slats and a matte black powder coat that resists scratches and corrosion. What convinced me was the combination of strength and weather protection — the side seals hold up even during wind-driven rain, and it drains out through integrated channels so the bed stays dry. The locking mechanism is solid — it clicks into place at any point along the track, not just open/closed positions. I’ve hauled tools and camping gear with zero issues. The power unit is tucked cleanly and has a manual override if you ever need it. It also includes a bright LED strip with remote control, which is great when unloading at night. Installation was a two-person job, mostly because of alignment, but instructions were clear. For rainy climates, it’s about as secure and dry as you can get.