I have an NS design 5 string electric cello. I opted for the high E string. You can also get it with a F string, below the C string. You can get it as a 6 string cello. Maybe that is available with the Yamaha. Having the 5th string has made playing octaves above the A string much more enjoyable. The amplifier you have is very important because not all amplifiers give you an nice acoustic cello sound. If you don't care about that well you don't care. Also your regular cello bow might not be right for an electric cello. The bow I have for my electric cello is specific for electric instruments. My regular cello bow does not work as well. I bought all of my equipment fromt the Electric Violin Shop in the US. Even if you can't or don't want to buy from them they have lots of knowledge. They have RU-vids to watch. Having an electric cello and experimenting with it is very liberating. It does take getting used to. Also as a cellist we're used to the vibration of the cello body and that the sound is projected from the F-holes on the instrument. I position my amplifier as close as I can to myself and with the speakers pointed out front as if to mimic how my acoustic cello might sound. This might not be the best position for the amplifier for a concert but for me it gives me the "feedback" that I'm expecting. As you know no out-of-the box cello can play properly. It is good to have expert support. There are so many factors, string choice, bow, amplifier - maybe more than an acoustic cello.
