Hmmm, this could even be a fun competitive race - assume everyone has the same PS, and randomly determine activation order after commands are set. Upgrades can be chosen as normal (in secret) and revealed on deployment, but if two players have the same upgrade they both lose it at the start (to avoid everyone just taking PTL and EU)....I have gone ultra nerd sometimes when I am by myself and put out 6 obstacles and give myself a route to fly around. If I touch a rock I reset. Extremely nerdy, but it has helped a lot.
Good training for setting up blocks as well - though somewhat more predictable given all heading for the same check-points.
Nice idea, I like it, could do different teams having to do the check-points in different order (e.g. reverse order for 2nd team) so everyone does not head for the same check point all the time.
Arguably, without further limitation, there wouldn't be much diversity (only 5 straight capable ships?) but you could play with "Speed divisions"... a 5-or-lower race, a 4-or-lower race, etc etc... you never know, someone might think a 4+boost better than a 5-without-boost (if EU too risky to take due to cancellation of duplicates).
A 4 + boost is actually better than a 5 because you will apply the length of the ship twice instead of once, after a 4 maneuver your front will be a 5 away. An additional boost is another 1 maneuver, which means another 2 away on top of that which totals for 7. Going just a 5 without a boost will leave you at 6 away. Not to mention you have an additional maneuvering option by banking the boost.