Wool and flat needle felted pieces

[Stargazer]

There are so many ways to start a flat needle felted piece, how do you build up your pieces and what wool do you use/prefer?

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I usually make needle felted prefelt of coarse wool, and go on with merino tops l as I find that the coarser wool helps the merino tops to felt in addition to allow more hues to occur in the finished piece. During the fauvism inspired piece I discovered that I actually quite like how BFL wool behaves and that fewer of the holes left by the needle were showing compared to merino tops - a big plus! That was an eye opener to me, and makes me curious as of how others start and build up their flat needle felted pieces.

[MTRuth]

I have used pieces of white flannel as a base before. I don't do much flat needle felting though.

[Shepherdess]

I never really needled flat pieces but when doing sculpture yes using a courser like the domestic 56 (RH Lyndsey) or English 56(world of wool)and then covering it in dyed merino. Dyed coriedale was nice for small pieces.

[zed]

I've used Merino when doing 'pictures', but mostly use something more texturey like drumcarded Merino and coarser wools I've had dyed. Then I add background colours and 'detail' mostly in Merino, or similar blend depending what it is. I've used other bases like felted jumpers, blankets and craft felt too.