My surgeon didn't tell me to grow out my brows before my surgery. Not completely sure if I shouldn't though. I pluck and I shape, but if I'd let it all grow my hrows would not make sense. They would not be full brows (the parts where I pluck) if that makes any sense. There would be holes, so to speak. I guess as a result from years of plucking part of the hairs gave up. So I don't know if there is any point in growing them out. I wouldnt mind looking rediculous with grown out brows if it would be of any use, but I'm not sure if there would be any use? Any thoughts?

I shaped mine upwards prior to forehead reshaping and a brow lift, after the surgery I was kind of disappointed with the result (could've definitely gone higher, without looking weird), so I do regret shaping them like that prior to the surgery 🙂
I think for the risk of looking a bit odd prior to the surgery, the eventual outcome would potentially be better.

I know i thought about it also, my thought process was to let them get thicker (its in right now so not a big deal) so the surgen could see my
natural brow that way he way when lifting he can find a natural position for where the brow would look good. Plus i heard prior to surgery and from the surgen that
sometime they have to work hard on one side then another meaning uneven brows... If they where full and one of my brows looked higher or lower it would be quicker
to get changed as i could leave it to my stylist to thin my eyebrows and correct anything to re obtain symmetry 

I recently underwent FFS. And I had this concern, so I grew them out. The day before surgery my surgeon was indifferent when I told him.

If they don't instruct it, don't worry about it.

Now I have to be forever seen with thicker eyebrows from the family Christmas photo we took two days prior >:0 lol