Are you allowed to fly for profit with SPL? If I have understood correctly, SPL is to LAPL(S) as CPL is to PPL, but with no extra requirements over LAPL(S), but I have problems believing this.
Assuming I have understood the rules correctly, I can upgrade my MGPL to LAPL(S)+TMG and therefore to SPL+TMG with no extra effort. After doing the conversion and flying PIC for 75 hours, I would legally be allowed to ask the passengers to pay for my flights. This seems to be too far from the current rulings that I have trouble believing this.
SPL = Sailplane Pilot License
LAPL(S) = Lightweight Aircraft Pilot License (Sailplane)
CPL = Commercial Pilot License
PPL = Private Pilot License
TMG = Touring Motor Glider