@gazzamattaz(couldn't you pick an easier name?
I didn't choose it I was given it and it kinda stuck 
I like that image comparing the non-specular to the specular, it really shows what a difference a specular map makes.
I am not sure if I am correct, but I think a lot of people don't bother with a specular map - never used to but I will now.
Tickety boo and ta ta for a bit...
Gazzamataz
https://www.gazzamataz.com