they are fine with fiction pegs on soprano or concerts, but find geared tuners generally more satisfactory on tenors.
I prefer geared on all my ukes, but you are right in that they do have some advantages over geared in soprano and concert. They are lighter weight, which helps it to be better balanced, and for what it's worth, its easier to put new strings on it as it winds quicker.
I used to have a Flea with pegheads. Absolutely loved them, they're the close you'll get to having the best of both worlds (comfortable 4:1 ratio, lightweight and friction-tuner appearance). But a little bit costly and requires some modification to fit on a uke that doesn't already come with them.
ps: But fiction pegs sound really cool! Why have real pegs when you can have fiction ones
