Have you tried asking them if they would make a one off tapered 32mm?
The designs are modular and they are nice, so they may do it.
The 150 is a very stiff fork although only 32mm. WB say it is something to do with a strong crown and bushing overlap.
Don't know why it is stiff, but it is.
Out of the box the 150 is very linear and always seems to be in the right place.
It is very hard to describe, but the front wheel always seems to be where I want it.
Hmm, putting in to words....
thrashing through a rock garden, flying all over the place, without looking you know exactly what your front wheel is doing and where it is?! no overcompression, rebound always the right speed, hard to describe, but fantastic to ride.
Like a Fox36 but moves faster
The spring is linear and using air to ramp up at the end gave perfect travel, but I found it sticky. I found this linked to higher air pressure and lubrication issues.
Removing springs and dropping the pressure made the fork really fast and responsive, but made doing the travel progression harder.
The magic combination I found was:
negative air in both chambers (pulls into travel well and speeds action of fork)
med springs in both legs + booster springs (these provide the ramp up)
Oil level max (ramps up faster)
air valve on both sides (allows to hold a negative pressure on spring leg)
5 weight oil (makes compression/rebound faster)
homemade wipers and boots (make the fork live through English mud)
but as said before you can tune it how you want.
I do have to stress the seals may be an issue