We seem to have a different definition of SPL. Under EASA, the SPL is the Sailplane Pilot Licence, which is essentially a PPL-level licence, but for sailplanes. That's why I included the glider info in my post.
You seem to refer to a German national licence, maybe similar to the UK NPPL or Dutch RPL, which can only be used for microlights or something like that. In that case, EASA does not apply, since you'll be flying an "Annex II" or "non-EASA" aircraft, which will be administered under local law and authorities. This also implies that the EASA Aerobtics Rating is not applicable, only whatever is in your national law. And to the best of my knowledge none of the former JAR-FCL states, including Germany, have any form of formal Aerobatics Rating at this stage.