well, everything has good and bad things about.
In my opinion the upside for boost is:
1- Back pack has more power so if you are cough in a accident you have the possibility do recover and even win the race.
2 - The race is more tight, the cars race more close and the position change is constant
3 - the frustration of being last is rewarded by having hyper boost and make the fast lap
The downside:
1 - if you are in the back pack you are constant punted of track and constantly you punt other people off track
2 - your effort to pass is not rewarded as you will be passed again by the same guy
3 - your driving is not really yours, the computer is you co-pilot
No Boost upside:
1 - You are on your own, your driving is what it is. (that should be on the downside

)
2 - You can have good battles with other pilots and you get less punted off track even on the back of the pack
3 - the pack is more spread out so if you have a battle with someone mean that you are on the same level as the other person
4 - if you pass someone, hardly that person will pass you again, you move up.
No Boost downside
1 - If you are off track, bye, bye unless you are an excellent driver
2 - you got to be more careful with yourself and the other drivers (that should be on the upside)
3 - to play in front pack you have to be really good and if you win a race, you can be proud of your self (maybe on the upside also)
That been said, my vote is to keep boost on Wednesday and Saturdays and no boost on Sundays so I can see how I am doing with my driving.
Concerning start grid here is my opinion:
As the "fastest first" do not work properly, this is what we should do:
With the "boost on" we should use "last race results"
With the "boost off" we should use " reverse grid"
I explain:
If the boost is on and we use "reverse grid" the fast guys will be on the back and being helped by the boost. That means they will pass no matter what, if they are impatient you will be punted off track. If we use the "last race results", they will go away and you can catch them using the power of boost.
If the boost is off and we use "last race results" the slowest guys will never have a chance. If we use "reverse grid" the fast guys will be on the back and they will have to work hard to pass with no boost and you'll have a chance to win.
my two cents
