Prodromoi

[hoplite14gr]

In my opinion light cavalry has a better chance skirmissing against heavy or catafract cavalry rather than charging head on.
The fresko shows the Prordromos skewering an infantryman.
Again I imagine this tactic used against loose order infantry not formed troops. That means that a Prodromoi charge would have a good chance against Phrygian or Arachosian peltasts not formed sparabara supported by massed archers. To my knowlege Persian catafracts carried lances so a Prodromoi charge against them would be unlikely. But they could easily drive out enemy light or medium cavalry that usualy did not carry lances.
Kind regards