[DonRotolo]

This is an opinion.

Any stored energy device is OK, as long as the team has clearly understood the risks inherent with it and taken actions to reduce that risk to an acceptable level.

For example, let's say you decided to use a car's suspension spring (very powerful, somewhat dangerous). But, the spring itself was enclosed by some structure that kept people away from it, there was a safety wire (in case the spring fractured, the pieces would be contained), there was little chance for people to get anywhere near it when it was 'loaded', and the release catch was very secure (no accidental firings), then it would probably pass OK.

The key phrase here is "Is it safe?". That's what they mean by close inspection, and what they'll be looking at.

Don