for some reason, I don't get regular notification of any updates to my post, so I went ahead & found a supplier for Tucano's. They are the bulky, fleece lined ones.
I removed the Yamaha hand guards I have bought as I didn't get on with them. They are up for sale on e-bay as we speak.
The muffs do help a lot against cold wind.
I found wearing motorcycle winter gloves, make me clumsy as they feel to bulky for reasonable movement inside the muffs. So I wear light gloves without bulky armour. Although I still find getting onto the brake lever slower.
Come warmer weather, I will look out for open ended hand guards to reduce squashed flies on my riding gloves