I set my Ivo IFA 3 blade medium on my 912 uls for colder tempatures so that I could get 5800 On take off , for ski flying. In summer temps it will overspeed if you have it set full fine. You get to know where to set it or adjust while rolling to avoid over revving.

I have a medium 3 blade Ivo IFA available for sale now if some one is interested .