@bikemech - I love the UPT's. But that isn't to say the standards on modern Martins are bad - far from it - they are very decent friction pegs. But I wanted a ukulele with UPT's and the Martin seemed the obvious choice. Obviously different, but dont add any noticeable weight.
@debussychopin - it's exactly the same process really - the only difference with removing gears is you are likely to leave a screw hole where the geared peg was secured. As I say in the article, i have done this and personally just live with the hole. If the hole bothers you, you need to plug it with narrow dowelling. But the process of fitting the tuner in the main hole is exactly the same. Sometimes you need to widen it sometimes you don't.