Looks great. Nice wing root. Are they the Dillinger winglets like the new ones for the LS8?
Fortunately the LS1-f already has a life extension program (TM60) or, as with the LS7 (TM7015), it might only be available for gliders with winglets.
Jim

They are the Dillinger winglets as per the LS8 and DG 1000 18 mtr.