With the amount of water that will collect under the short dome, large leaves touching eachother and the sides are inviting spots for mold and crap to reside. Trimming them shorter won't harm anything, and it'll give a little more room in there.

Not saying it can't be done without trimming, it clearly can. Just a suggestion from my experience with that "type" of cloner :jointsmile:

In the end, it's up to you my friend.

Peace