It seems that my adren is maxed for a good part of the game as an engineer.
The only thing I can use it for is shield blast, berserk, and boost.
Sometimes I try and give out my adren to players that can use it, but it is difficult to find a willing applicant that will make good use of it.

Would a shield sphere be a good idea?
The shield blast is handy, but is many times mistaken for the bunny blast and everyone runs away. (Could the bunny blast charger be changed to a pretty purple or something?) Sure I can announce it with my keybind but the %L location is sometimes too vague.

I don't think a shield sphere would make engineers anymore powerful...especially since many engineers may opt to not use it since it will use up their adren.

What do yall think?

For those that have seen Wall-E: I feel like Mo chasing all you shieldless guys around.