I recommended XP-E2 Green 520nm with the 7.5A CC driver, but I didn’t mean a custom driver, I just meant Emisar D4V2 or Noctigon KR4 with Hank’s 5A or 7.5A constant current driver.
XP-E2 Green 520nm does not need more than 1.5A to perform at its best, in fact 5A CC driver is probably enough for a quad: 1.25A for each led.