I have a ohana tk-300 g koa and mainland red cedar concert. Both with aquilla strings and for volume and projection it's mainland all the way. Ohana sound really good but the mainland is a much bigger sound, hard to describe. Phil
The mainland red cedar concert is one of the best ukuleles out there. I do own one. I also own some other nicer ukes but it really is hard to beat that mainland red cedar sound.