Interesting. I haven't used the WT guitar in awhile but I liked it when I did. I've not played with the GH5 one, just held it and strummed it a couple times.Second, the biggest difference between the GH4 guitar and the GH5 one - and the reason the GH5 one is my favorite - is that it replaced the internal strumming mechanism with the same one used in the GH3 guitar, which is a fantastic one. Super accurate. I hated the GH4 guitar because of its Rock Band like strum bar, but the GH5 one is as good as it gets.