The more hinged attachments, the weaker the tool is going to be and the more likely it will fail in the future, probably at the worst moment.

The old style of military entrenching tool is best. IE: US Army entrenching tool from WWII and the German (Wehrmacht) Army shovel: both have a single pivot point that positively locks in 2 positions; some of the US Army models and all of the German Army models have picks attached as well.

I don't personally trust the new design of entrenching tools that have multiple pivot points.

That's my 2 cents worth,,,,