I take your point, Jolly, and thanks. The caution I expressed was repeated several times in a Rotax maintenance course that I took a few years ago. Perhaps the instructor feared inadvertent prop turning while the oil circuit was open at two places, which would introduce air.
RV-10 - 8/16 project resumed after -12 completed
RV-12 - built for wife now flying light sport
SeaRey flying 2012 - Sold
2017 Contribution made