Originally Posted by mdubya
I meant that might be the reason for having 3 engines in rotation; 2 in one gen chassis and 1 on another gen. I do believe Jorge and Vale have been switching back and forth a lot, unsure of which works best.
I think you mentioned they each prefer a different chassis.
Yes, Rossi and Lorenzo prefer different chassis, but they both have two bikes using the chassis they prefer. Chassis testing usually gets done at tests rather than race weekends, as two 45 minute sessions, often with different weather, makes it tough to evaluate properly and to do back-to-back testing.
It's an interesting idea to rotate engines in chassis, but with just 5 engines this season, there are more important considerations. Rumor in Spain is that Yamaha is having problems with its engine, after Lorenzo had a drop in power, and now they've detuned to keep the engines from blowing up. This does not bode well for either Mugello, or the championship.