receder21,
You are welcome :wink: .
Make no mistake about it. Ask any honest ethical surgeon within any field of medicine and they will tell you that anytime a cut, incision, laceration, etc is made into flesh tissue, the body will formate a scar in it's healing process. The real question is "how visible is the scar or scarring" after complete healing occurs to the wound. There have been some hair transplant surgeons specializing in these isolated extraction methods, namely in the US who have irresponsibly referred to their FUE techniques as "scarless" or even "touchless"! They then became rather loosely used terms by us lay people. Don't be fooled by this at all. Docs who use this loose terminology are solely doing it for marketing purposes. It catches one's attention does it not?
Yes I have physically seen smaller isolated extraction cases over the past several years and in some instances it was very hard to detect where the extractions were taken even when the patient had his donor area shaved post-op. In other words I was viewing a completely healed area without the lingering redness that can take longer to dissipate. Still there were smaller cases where I "could" tell. Everybody heals differently. There can be lingering redness that can last over a year or longer.
In the same breath let me also state that I have seen a very moth-eaten appearance again where the donor area was shaved after complete healing. The sites where the extractions were taken looked like little white dots or spots. One of the differentials were the larger cases of 1500 grafts or larger sessions. I can go and literally locate where the FUs were extracted. But I also know what to look for. Possibly the average person would not notice it as much. It also depends how close the FUE surgeon extracts the FUs from each other. The more the extractions were spread out, the less noticable the "spotty" appearance.
Probably the reason you did not find efficiency in your hairline with Propecia (finasteride) is because Propecia does not claim any efficiency in the front-scalp, only the mid-scalp and crown. The data is all in their clinical trials. However if you find Avodart (dutasteride) to work better results, then I wish you well. From my understanding finasteride only inhibits Type I DHT, not Type II.
Since you are not thinning yet in the mid-scalp and crown, quite possibly you are in the "A" class of receding on the Norwood scale. This pattern is a gradual recession and loss of one's frontal zone and eventually works its way back towards the mid-scalp and crown. Either way, see if you can go get examined by a hair transplant doctor or derm who utilizes a densometer to examine the caliper of your hair in the mid and crown. They will look for signs of "miniturization" (loss of caliper) which is evidence that DHT is adversly affecting those areas of scalp. Utilizing a video telescope works even better to note any miniturization of your hair shafts. Take care man.