6-10 rides is about all I get from mine over winter (Swinley mud is possibly even worse than Peaks grit!) It’s not a big job once you’ve got the knack of getting the bearings right first time. And never jet wash, you can flick those seals off with a fingernail, just imagine what 15bar of water is doing!
I’d go with just about anyone else now though, Hope, or any other cartridge bearing hub only need a new set of bearings every 8-18months of regular use, and a set of bearings cost £8-£20 or so, which is about the same as a shimano freehub, which lasts about as long, but in the meantime you’ve re-built the bearigns ~20 times? I dont buy the Shimano being good value/servicable argument at all.