Could be a case of CASA pushing ahead with confronting restrictions BECAUSE other methods to fix the problem dont exist within their regulation. God forbid they would look into this probelm.
Most Jabirus are LSA, only way to be used in training.
They have NO way to implement any modifications without manufacturer approval. There simply is no process for outside upgrades to be made and retain LSA status.
Basically no STC process.
There are aftermarket improvements available and more coming however many owners cannot today or ever use them unless Jabiru approve it.
Its a bigger issue than just this engine, what happens when Euro company closes? No way to keep it in training use
This ham fisted approach is attempting to force a company to accept others work, assuming its for sale, and take reponsibility for it.