Tape over innoculation holes...

How many of you place tape over the holes of your jars?

I read on the other board that if you just leave them uncovered...you get better exchange...

thanx

i heard of that too... i see it as long as you have a verm barrier its cool to leave it uncovered. but i got mine covered, and they seem to be doing good. do one covered and one uncovered and see wich one progresses more