I probably have seen more hypo-pigmented and "raised" scar cases over the past 30 years because patients needing repair tend to contact me and I have no doubt seen more photos than any other individual(s). Most HT surgeons do not see that volume of pics of repair cases. Not boasting by any means, just stating the facts.
Anyways, your asian decent (Eastern/South Asian) is not prone to raised scarring that I have noticed. The keloiding from my observations is more prevalent with those of African American decent or middle Eastern decent. Still even amoung those groups, it is not common. Those cases mostly involved the more darker pigmented individuals.
Yet I have observed very fair complected caucasians heal with a wider or raised scar and have seen lingering redness in very fair skinned individuals.
If you are a good healer, then there is a much more higher probability that you will not end up with a raised scar from a strip excision. It's more of the hypo-pigmented spots you have noticed at the recipient sites where the former grafts were placed that's IMHO more of an issue for you.
I would recommned that you discuss the use of custom-sized micro blades to create your future recipient sites verses using hypodermic needles in creating your recipient sites, espcially at the hairline where the impact of visibility is high and more profound. Hopefully you won't have any more recipient "dots" on your hairline.
Many asians of Indian decent have profoundly dense donor. It sounds from your own words that your hair caliber is more thin however.
I had 6900 grafts total, and my last procedure of roughly 2400 grafts was done by strip as well. My laxity was a bit tight however the surgeon closed me with staples. We both wanted that extra assurance of a thin linear scar which was accomplished.
Thanks for asking and best wishes to you my good friend!