(Over the last 12 months for various reasons there has been dramatic increase in compliance to the Service bulletins/ Letters and maintenance procedures issued by Jabiru This combined with Jabiru engine training workshops has resulted in fewer incidents and has put Jabiru engines well ahead of Rotax for reliability, the standard by which CASA based their aggressive actions.)
Surely you jest (If your comparing 912/914 4 stroke and not two stroke)
Absolutely no comparison,, the Rotax beats them hands down no question.