There are some triangle patterns as well as "W" patterns - e.g. Monday is
Aircraft 1) LCY-BHD-LBA-BHD-LCY
Aircraft 2) LCY-BHD-EXT-BHD-LCY
Aircraft 3) LCY-BHD-GLA-LCY
Aircraft 4) LCY-GLA-BHD-LCY
Looks like an aircraft then stops over for the weekend instead of going back to London on Friday night, operating BHD-NQY-BHD-EXT-BHD on Saturday and BHD-LBA-BHD-EXT-BHD-LCY on Sunday