The RV8 was apparently not a prepunched kit initially, so some of the builder sites show the fuse on a jig. This likely would cause changes in a number of areas. At the moment I'm having trouble with the WD822 gear tower weldment and wishing that wasn't prepunched. Can't get the holes to line up with the skins and gear tower outer plate.
RV7 tip up
IO360 Whirlwind 200RV