It also depends what you are facing. There are a few cases I would allow a slower mini to deploy over a faster one on my alliance.
1. If you know your opponents dont have minibots (unlikely at CMP) then I would have the best tube scorer (probably has a fast minibot) should continue scoring tubes and the other two put up minibots (possibly has a slower minibots).
2. If it is a blowout where minibots don't make the difference, send the slower minibots and possibly let opponent minbots (if any) win for better RS.
3. Opponents have supper fast minibots and it will be a race for 4th no matter which which of the 2 remaining minibots on your alliance that you send. If you don't have any minibots that are competitive with your opponents, it doesn't matter how fast each individual minibot is at all.
I know we have used #2 at Philly. We stayed out (fast and reliable minibot) so another team could successfully deploy the first time that match (they were pretty fast too
).