I'm starting to work through some of the running rigging. I replaced the sails last year, and a few of my older Sta‑Set lines are definitely end‑of‑life. My sailmaker (he's not a rigger but does race) suggested that, to really get the most out of the new sail shape, I should look at UHMWPE‑cored line for my main and jib halyards and vang control line rather than sticking with traditional Sta‑Set, especially if I'm not planning to make or finish the lines myself.

I've always defaulted to Sta‑Set because it's familiar and forgiving, but I'd appreciate real‑world impressions from folks who've actually used MLX3, VPC, Marlow D2, Novabraid Tyrus, or anything comparable. I have zero experience with any of them. I'm not looking for marketing copy, just how they feel in your hand, how they perform on the water, how they age, and whether the performance jump is noticeable on boats like ours.

A couple of riggers I spoke with mentioned that if I didn't care about the color/style of the covers versus the color coding I currently have, or about staying in one product line, they could build me even higher-end sets from off‑cuts of other custom orders (e.g. Viper, WarpSpeedII, NS12 & D2R)  without a significant cost jump. I don't know if that's actually worthwhile or just a bragging point of "look at what I have," a cruiser, or if that was a path to buyer's remorse.

If you've moved from polyester double‑braid to a UHMWPE core, what differences did you notice? Handling? Knots? Slipping Covers? Was the upgrade worth it for cruising performance, or does Sta‑Set still make the most sense unless you're racing?

Thanks in advance for any firsthand guidance.

[btw - I've posted the same ?s over on the FB form]