The latest update fixed the owner & team blocking all mountables but now only the owner of the heli can mount.
Team members cannot mount heli
Ah, I didn't actually test with a team since I was by myself. Just glanced at the code and see the issue. Will submit a patch for Spooks to review shortly.
https://github.com/Spookywooky3/SpawnMini/pull/3
https://github.com/Spookywooky3/SpawnMini/pull/3
Currently not home, I'll take a look in a few hours.