No help on the Muc Off here either Alyssa :whistle:
I use CT20, which is the next one up from CT18. It is called WASH & WAX.
Spray on from mixed at 20:1 from a garden spray bottle (usually 3 litres does a whole bike clean)
Usualy pay around $30 for 5 ltr bottle of concentrate when Supercheap have specials on :laugh:
Leave for 10 mins then simply hose off, usually without the use of even a sponge 
I never use a pressure sprayer on the 690, CT20 does all the hard work 
As mentioned by Murph,,, wipe plastics down with Armorall Wipes every second wash or so and she sparkles like new every time
I also use it on our cars and .haven`t put polish near the Landcruiser in 10 years :whistle: