Sure thing

Absolutely true about the chinese frames sometimes having weird linkages... but yeah, the FM936 seems pretty fine.

The anti squat is actually not affected by the placement of that rear pivot point, but very much so by the center of gravity, and I honestly have no idea how to correctly estimate that. I've just kept it where the software suggested it to be.

Anyway, it's probably very similar - if not identical - to the NS Synonym, and the magazine reviews haven't reported any terrible ride characteristics.

So, here you go, anti suqat for 32t and 34t (the highest line is with 50t, the lowest with 10t).

That's why I've just gone for the FM936 as it was designed by NS Bikes so pretty sure the suspension kinematics will be on point as is the geo.

Thought I had better check for some of the issues that have been discussed on the forum and sure enough the lower pivot bolt is nearly 82mm - one clean cut with a hacksaw will fix that! Any other 'niggles' I should be looking for?

Hi guys - I've just received my standard size M to New Zealand took 10 days from payment to delivery. Communication was with Wing and everything went very smoothly, frame was well packed and all items were received in good condition. I have noticed that the seat tube seems to be shorter than other frames I haven't seen this anywhere including the Carbonda/Flybike websites... has anyone else noticed this?

The 42.5mm shock works well, it seems to give more than 100mm but as far as I know we don't know exactly how much travel but probably 110-120mm. It feels natural with this stroke size so no worries there.
The bike is being raced a national level (https://www.facebook.com/patxiciafanpage)  and was even in the recent XCO world champs so it's clearly capable. I'm going to be riding it with 120mm in the National Points Series (hopefully) here in Ireland and I'm going to be keeping the 120mm Sid Select rather than 100mm due to the terrain here. I wouldn't worry about the head angle, people said the same every time it gets slacker - You don't go slower Where are you racing and what's the terrain like?

There is an easy method to work out wheel travel... it is the leverage ratio x the shock travel = wheel travel so to find the leverage ratio we do know that on the specs we have wheel travel is 100mm and shock travel is (165 x)40 so leverage ratio will be 100/40=2.5 so for 42.5 shock travel it will be 42.5x2.5=106.25 - not even 110 unless you can somehow fettle a 45mm stroke shock on there which will give you 112.5
I was hoping to get 120mm travel out of this frame but looks like I'll have to go with either the LCFS937/958 (cracking issues resolved?) or the FM1001 and forgo the flexstay kinematics...