I have to agree with the thoughts on the fret spacing. The only problem I have is I do find it a little odd as I mainly play tenor banjo - another excellent instrument for those wanting to use GDAE tuning and play "Irish" tunes.

I had a ukelele-banjo for some time that I tuned to GDAE and it worked quite nicely though I still prefer my proper mandolin-banjo. These are great fun - I don't know why more people don't play them.

Jon