Assumption of Hair Loss for Hairline Designs in Hair Transplant

[NARMAK]

Hello all, 

Wanted to pose this question and probably a good one for the experts to also chime in with as welp as users who have had HTs. 

It's typically recommended to use Finasteride to inhibit DHT and start with that and see how your hair loss situation turns out around 12 months later. Halted, slowed or perhaps reversed (in different levels). Then they say consider how aggressive your loss etc. was. and factor in age. E.g 20s hair loss going from NW1 to like NW4 vs NW 1 to NW2 etc. before medication. 

So, if a patient without medication demonstrates slow/gradual loss, within a Norwood grade, and has been on medication like Finasteride and shown MPB hair loss to be stopped and perhaps even had a slight reverse, could this be taken as a good indicator that the person is more suited for a HT? 

Will it allow a clinic to feel more confident giving an aggressive hairline design?

Or do they still look at patients and go on the assumption of if they were not on medication and family history to try and plan? 

I feel like i've seen a lot of examples out there of what can happen even with a Twin who starts early on medication and keeps on it VS a twin who started late. Derek from More Plates More Dates did a video on two twins using Dutasteride with one having started early. 

Also, has anybody here got a history of where family members went to like NW5/6 naturally in their 50+ years without medication and how your hair loss progressed in comparison whilst on medication and if you had a HT, did it keep going in that direction?