Remember that in full ring, especially at medium stakes 200nl/400nl/600nl you are playing against a lot of campers (especially on stars where you seem to play the majority of your poker)

One of the things i find about stars is that when you tart opening the pot with non-standard hands you take the nits to pwnsville because they never suspect you of opening with 23s or watnot.
But certainly, a better player has a bigger edge in 6max, so if you are a comfy winner at full ring consider the move.