when I fim I do remove some. its about the size of a match head. as far as stunting. ive grown 21 autos and I fimmed the last 10 or so. I never had a plant go longer than 81 days... lol so I so I no stunt them.. if you guys go through my whole threads I do step by step instructions with daily pics so you can judge for yourself if they stunt.. check out my dinafem xxl thread. I cut her couple days ago and she already grown like normal.. all my plants are always on schedule. lmao im a very good poppa. oops. I mean check out my yoda thread, she fim 3 times