Scrap them, and get Competitions. (for fighters)
[and or Wico 8way leafs for Classics, and or Pac Man 4ways, for 4way games... etc]
Happs Ultimates were like their first run of microswitch joysticks. They didnt pan out very well.. didnt hold up to the abuses, didnt control well either - especially when they wore down. (spacer gets shreded to dust.. )
The Comps however, are the better design, and work extremely well. Very durable, great control. (for fighters / modern games)