We didn't need it but we got all the clerances and local paperwork we could think off. Maybe worth it so they may have to possibly run less background checks on your mahal?
Also worth doing as some people I have read have had slight problems when first done finding out there is someone with a simliar name and background with outstanding issues. This takes up time but usually nothing to serious.
If there is any issues you can clear them up, if nothing comes up its done and dusted
But as others say no actually reason to do.
Again it maybe something the yanks ask for. I know many Phills compare visa exeriences but forget the Brits and yanks have different systems and requirments.
Apply for it in cebu if it only takes a week so you have it and piece of mind no problems.