I'm a big fan of Tides Tracks. They are engineered to take the loads on boats up to about 45' monohulls. It's half the price of other systems and it works awesome. (I have it on my own boat). Keep in mind the following limitations please: a) The track needs to be inspected for UV damage annually, starting at 5 years old in the tropics, later in temperate climates. b) limited to use on monohulls up to about 40-45 feet, smaller on multihulls. c) you need a high load head carriage for the bigger boats.
For boats over 45', you have to choose a different mainsail system that can handle a bigger load. There are many really good, proven reliable systems. A lot of my customers over the years have had Antal HS fiber lined systems that have no ball bearings. I've never, ever heard of a failure with them.
Electric winches take all the work out of hoisting a sail. A bit pricey but they make hoisting effortless.
2:1 haryards give you more mechanical advantage for hoisting stength and reduce strain on rope clutches, etc.
But.... Even with low friction mainsail systems, you still have to maintain the components faithfully to reduce friction. Owners need to clean and lube the mast groove, slides, halyard sheaves, halyard turning blocks, etc, at least once or twice a season. And rinse all the deck components every time they put the boat away. If you're on a mooring, you need to figure out a way to rinse the deck hardware periodically.