I tried my friend's FM316 size M (I am 180 cm, long legs). While I mostly liked how the bike felt on the road (need 10-20 mm extra reach) it feels smaller than I expected and when I go off-road it feels the weight distribution is off - too much pressure on the handlebar which may result in excessively nervous technical descends. The dilemma is, 420 fork will make the bike too relaxed and the 395 is way too low for me. The 405 fork from FM 346 should provide intermediate position with sufficient stack yet decent HTA that I really liked. Luckily, Jack was very cooperative and we made a deal for FM326 size L plus extra fork from FM346.
Will see how it plays out...