hey, I went the same way as you just cut off until 4mm so it would fit nice and didn't make a rim i've posted some pictures on the stinkbud forum thanks for this 
I know you use pure nft, are there any advantages using the spraysetup or do u think the nft way gives the exact same effect? is there still enough oxygen without the spraying or
do u use airstones? Thanks and hope is all well with your new growroom

I know you use pure nft, are there any advantages using the spraysetup or do u think the nft way gives the exact same effect? is there still enough oxygen without the spraying or
do u use airstones? Thanks and hope is all well with your new growroom