--- Begin quote from "bluenote23"
I've read your other posting and I would suggest that before you buy a 4 string tenor or plectrum, you check out the repertoire available for these instruments to see if this is the banjo music you want to play.
Banjo, in my experience, is not like a guitar where you can just pick it up and strum a few chords. Well, you can do this but on the banjo it sounds pretty dismal.
If the music you hear in your head is clawhammer style, then you'll want to look for an open back 5 string. If you hear bluegrass Scruggs style, then you'll have to learn how to use fingerpicks on a 5 string.
Unless the nut on the left handed banjo was already recut from a right handed one, you would have to recut at least the 3rd and 4th string nut to fit the larger strings when you flipped it over. But check out the type of music, old style jazz, Irish tunes, that folks play on a 4 string before you buy one.
--- End quote
Once the nut has been cut will it be OK if the strings are reversed back if you follow my meaning.
And yes, I have decided to go to a 5 string!