(Anti-cattle-prod-and-hairbrush-armour ON - I did try a search, and looked at SeatExpert.com, but...)

A couple of friends are travelling in Y (yes, I know) from BOS to LHR tonight on a 777. SeatExpert.com suggests that the Y seats in the 4-class 777 run from rows 26-40, but OLCI showed a seating plan from rows 21-35, and with row 21 only having seats DEF. I checked them into 22HK as these seem to be in the front of the Y cabin.

Is this right, i.e. is SeatExpert wrong here? Has anyone on here been far enough back in a 777 to know what those seats are like?

Thanks!