Hair Thickness with Rogaine

When on a topical such as Rogaine does the “new” hair initally fill in as a finer thiner hair that thickens up over time —-or should the “new” hair start out as a thick terminal hair ? Thank you

I believe that it starts off finer as a rule, then it may or may not thicken. Please see the below blog entry for more on Rogaine / Minoxidil.