The worst for me was always the SG replacement jobs, no way around it, never use nice boots on those jobs!! But that was all land based for me so I always had a chance to run if need be! After many years I finally got smart and got my EPRI I&C rating, much cleaner workWasn't bad, but I did have a few Rx compartment entries (inspection purposes only). Probably only 500 mrem over the four shipboard years