Vets know which edges are good. Newbies don't. Fastest way to close the gap in familiarising newbs with edges would be to ensure all chars had quite a lot.

As tsal, I took a few crap edges and it didn't matter because I had lots. As a newbie, those could have been my only edges. (As a vet I wouldn't try them if only a few are going to be available.)

If getting rid of obs edge points, say, why not give all chars ep equal to 2/3rds of the direct obs ep and half the ep from the bonus you get if you get enough obs exp before a certain level?

Also, that means that if a vet is getting more ep from other sources, as is likely, that extra benefit will be proportionately less.