The two guns cycle a little differently and if you're good, you'll see it. In multiple comparative assessments done by different people the results suggested that either L was a better shooting gun, by a small margin (my opinion too), or there was no difference. I don't know if anyone found 30 to be more shootable although late TLG may have.
I am personally considering to go all 30L too but I am still working on quantification of differences.
I am personally considering to go all 30L too but I am still working on quantification of differences.