Surface Gap Spark plugs

[Duke01]

Hi guys, I am looking for some guidance regarding replacement plugs for my 1980 200Hp Mercury outboard. I wanted to have a couple of spare plugs on board and purchased NGK BU8H surface gap plugs in error. Will these plugs work on my old merc? Theoretically, they look like they would be less likely to get gummed up. Curious whether the group has any experience with this plug design.

Thanks, Duke