hey john,

       yup, it's a Dave Brown, now that you mention it. boy, i hope i didn't create a grenade waiting to happen....this isn't the first time i read that the screws do work good!.  i did drill the arms for 8-32 cap screws to use with nylocs.   i looked at that long and hard after i drilled it,  but i think they still have enough meat.....well, they're cheap enough, maybe i'll just go get another and actually do it the way it's supposed to be done!.   i have to admit, i'm one of those guys with a ton of tools and machinery, know how to use them and just can't leave something alone.... i gotta make it..."better".   i'm usually  successful, but there's always a first time and i sure don't want that to bite me where the sun don't shine!!!  thanks for the warning, ...well taken.
                 ron