Interestingly just pricing up a cash booking for LHR-JFK return in J the TFC figure is shown as £992.16 with a YQ of £700, this is also the same for a F cash ticket with the same level of YQ.

When pricing up a reward in J the initial estimate at the bottom of the flight selection screen is £990.16, but when clicking through the TFC figure is £842.16 which has a YQ of £550. Has it just not been updated yet for some reward bookings? Usually TFC should be the same for a reward and equivalent cash booking.