Quote from cstfx:
Amp Forex with Ninja FX is just a rebranding of Forex.com. Read about the functionality of Forex.com to make your decision. Having Ninja as a front end is not going to make it any more functional or give you better executions since you sill have to go thru Forx.com system.
As to Mirus, their NinjaFx used to be for HotspotFXr before that was sold to FXCM. It appears the only fx offering that Mirus has is white label of GFT, which does not connect with the Ninja front end.
Quote from cstfx:
They will only give you 20:1 thru their JPM prime. I tried to get more but no can do.