2500CTD

I haven't seen this mentioned yet, but what about hooking a grease gun hose to the bottom of the filter canister to a needle valve then 1/8 tubing inside 1/4 tubing to the gauge? Any chance of the needle valve causing a leak on the canister, I read that one needle valve broke off, but it was a heavy duty version and the weight caused it. Wonder if going this was is extra precaution or would the needle be better at the canister incase the greease gun hose ruptures/ wears through?? Sorry I know the FP gauge question and many and few, but haven't seen/heard of anyone trying this way before. Smack me if it has been
OH I have also read that some people have found out that upon closing the needle valve that it didn't exactly shut off the fuel as intended. Anyone else run into this?