I don't think we really know how much freedom customer teams have in their choice of engine mode. Listening to the Matthew Carter episodes on the Missed Apex podcast, I've learned the answer is/was less than one might think.Herr_Koos wrote: ↑04 Jun 2021, 13:40Yes of course, that's what I was referring to. Use the new engine for maximum attack this weekend, and save the older one for use at a less power-sensitive track later in the year.