I was looking on the Strictly 7 website due to all the people posting some nice customs from them and noticed the had a "Gothic" line which their 7, 8, and 9 strings are all made out of Poplar.
Is Poplar an ok wood for guitars?
GOTHIC SERIES | S7 Guitars
They also have the same specs for the "XT" line now also
XT | S7 Guitars
I'm just wondering. I've been noticing a lot of smaller custom builders using it.
From what i've read, Poplar has pretty much identical tonal properties to Alder, it just isn't pretty, so it's usually preferred to have a solid finish rather than a transparent finish.