36" drops - Is it ok to have a U or curve in the drop?

[Gallinipper]

I made 36" drops last year and tried to stretch them out while tapping to keep them as straight as possible going into the T - Is it ok to have a U or curve in the drop? For example you only go up 12" to 15" from your T to tap and now you have a U or curve to the 36" drop. Will it affect the flow? (using 3/16 line and drops)

[psparr]

Just wrap it around the tree. But it will be ok to have a sag in the drop.