(That is, there are other principles in the Code that cover practices relevant to pre-hedging and 3/6  BIS central bankers' speeches  last look, not just Principles 11 and 17.) The Guidance Paper on Pre-Hedging discusses the circumstances in which pre-hedging could be used in the FX market and the controls and disclosures that could help align pre-hedging activity with the Code.
As the paper states, in utilising pre hedging, liquidity providers are expected to behave with integrity both in executing their client activities and in supporting the functioning of the FX market.