Slippage amount, in points (dollars per share or contract), for each stop order transaction
Any formula specifying dollars per share or contract (points)
Defines the amount of slippage to apply to to each stop order transaction, in price points.
Slippage is calculated and applied to each side of the trade (EntryStop or ExitStop) separately.
If StopSlip is not specified, then the Slippage formula will be applied to all stop orders.
If you want there to be slippage for market orders but not for stop orders, you must specify StopSlip: 0.
When a strategy uses both EntryStop and EntryLimit (enters positions with a stop-limit order), StopSlip is applied to the entry transaction if specified, otherwise Slippage is used (LimitSlip is ignored in this instance).