Chuckjr wrote:I believe it has to do with a balanced perspective and trying new parts out with a driver who can be unbiased and flatline objective about the changes. I think also teams want their race drivers to maintain a certain feel of their car and placing esoteric parts on the can can cause that vibe to be jeopardized. That said, I can see both sides of the coin as Alonso would have none of leaving the testing to another driver. I think some of the decision is unfortunately political (see below).
I seem to remember Hamilton complaining last year about a lack of r&r and I'm sure Macca has learned from his antics of last year.
Finally, I don't think there's much doubt your not going to get an objective and unbiased opinion of development parts from LH. JB may well could, but if they allowed JB and not LH to test....well let's just not even go down that rabbit hole.
I suppose that makes sense, if I was a driver though I would be making the point strongly that I need to set in car for the new parts. Its like going in blind for the next race.