My wife and I are on a 2-4-1 LGW-MCO this weekend. We didn't wish to pay £77 each to pre-select and despite flying many thousands of miles in premium cabins, mostly on 2-4-1, not likely to ever get status, so we took a chance and at OLCI we were allocated 10J &K, with an option to change seats to 1 of the 2 still available!
We stuck, rather than twist!