For both ZenTappers and Megatars we generally recommend the BassBottom tuning, where bass is tuned in fourths, just like a standard 6-string bass. Learning is much faster with this tuning, and most of what you already know from guitar or bass transfers quickly, plus your right hand picks up what your left hand knows very fast. In your mind, since both stringsets are tuned the same, you have greater clarity as you learn. All this makes learning faster with this tuning.
For folks that already have learned the Chapman-style Inverted-Fifths tuning, we also make instruments with that tuning.
Crossed versus Uncrossed String Arrangement
For Megatars, we recommend normal string arrangement (‘standard’ or ‘crossed’) where, when playing the instrument, you’ll find the melody stringset positioned on the far left, and bass stringset nearer your face.
For ZenTappers, we recommend ‘uncrossed’ string arrangement, where, when playing the instrument, you’ll find the bass stringset positioned on the far left, and melody stringset nearer your face.
The difference is because the most comfortable and healthy hand position is different for the (thin neck) Megatar and the (thick neck) ZenTapper.
[For photos and more info about ZenTapper, please see http://zentapper.com.]
[For a (humorous) discussion comparing BassBottom and Inverted-Fifths tunings, please see our Sermon on the Evils of Inverted-Fifths Tuning.]