Compatible Hypertherm consumables are a waste of money imo. They don't last 5 mins. Go for the genuine Hypertherm bits - better value for money in the long term.
Most welding suppliers can get hold of Hypertherm stuff.
They are not that bad, they just do not last as long as original ones.
I have used them for two years in my CNC Plasma and they get a lot more hard use than in a hand torch.
Saying that I now have a local company to me who can supply originals fast at not much more cost, so I now use those