med v large spot?
Interesting, very interesting. I'm in the same dilema as you - 5'11, wondering whether to go 17 or 19, i posted this question here a few weeks ago and got a split answer from all the responses - still no better off.
As i have no turner dealers near me in the north-east of England, test riding was out. Anyway, while holidaying up in Scotland, who should i bump into but a group of mtbers riding medium and large spots. They kindly let me ride about for a while and this is what i concluded :
The large seemed right and i felt comfortable but, i dunno, it didn't feel right - too big?
Along came the medium which straight away felt and rode right.
Yeah, it would need a bit tweaking and the seatpost would be pretty high, but when the trails get rough and fast, the medium is the one i'll be going for.
Good luck in your choice.