I spotted a Suntour (admittedly not as sexy as Shimano or Fox) lockout on ebay that has a band to attach to bars which means it should be able to fit under the shifter window and be fitted inboard of the shifter.
Received it in the post today and fitted it this evening - was expecting it to be cheap and nasty plastic affair but surprisingly it is alloy - wieghs 42g with the cable. It sits inboard of the shifter so now the shifter and brake levers are closer together - great
, since previously the remote sitting in between them meant that the two were further apart, so much so that the 2 way shifter levers only worked in one direction due to the brake lever body getting in the way.
The amount if throw for the two remotes is about the same - fitted the cable to the Fox forks and they lock out perfectly first time, no need for any fiddling.
So if you have Fox forks with remote lockout, Shimano shifters and Formula R1 brakes, you may wish to change the remote for a Suntour, see photo.