sweep family: 4 members

 fast  slow  scale    total_pips       max_dd    flips
    2     4    0.5       -6.5000      18.0000        2
    2     5    0.5      -24.4000      35.2000        2
    3     4    0.5       -7.8333      13.3333        2
    3     5    0.5      -23.7333      30.5333        2

best by total_pips: point #0 (fast=2, slow=4, scale=0.5) = -6.5000 pips

distinct total_pips values across 4 points: 4

family params, in order:
  #0: [2, 4, 0.5]
  #1: [2, 5, 0.5]
  #2: [3, 4, 0.5]
  #3: [3, 5, 0.5]

OK: named-axis sweep produced a comparable, ordered, non-constant family.