How I hate autocorrect, hopefully this may make sense.
Maxton do make a very nice shock as I bought and fitted both their rear shock with a remote pre-load and had the front end revalved on the Pan prior to getting the Wilbers. However the remote preload failed on two European tours and eventually they removed and refunded me for the cost of it.
The advantage with the Wilbers is that it is produced for the unique RT Susp system and then set up for your weight, use, pillion etc. The Maxton had also been set up for us as well but, though I hate to say it, the shock wasn’t really up to the job.