I’ve run mine with RS Reba 120mm maxles, Fox 36 RC2 150mm talas and the current offering, Magura Thor 140mm maxles.
The Reba’s were good, light and fine for normal usage, but a bit short when the ground steepens (downhill).
The weight of the 36’s just seemed to unbalance the bike (they worked great on my previous steel 456 – so I do think its a balance thing), always run with plenty of sag and once talas’d, easier for climbing than the fixed Reba’s.
The Thor’s I’ve on now a great – bike just feels right – do everything from local singletrack through to trail-centres and Peaks/Wales riding.
I was going to buy a pair of RS Revelation U-turn maxles 150mm (max) as they were the lightest of the long 32mm forks, but the Thors were over £200 less.
If buying from scratch, and had the cash, it would be the Revs though.