Hello everyone who kindly offered their advice in response to my post.
It's helped me reach a conclusion. I am in agreement that a mill is preferable to a board, mainly because with a mill I don't need to move back and forth and can develop a good rhythm as I warp. And also because, like many of you, I don't have the wall space for a warping board. My biggest problem with my existing table top warping mill was that the pegs are fixed, making it a struggle to release one end of the warp to start the chain.
So, having watched Jane's warp winding demo from Season 1, and spotting that she was using a Louet mill with removable pegs, I have ordered and am awaiting delivery of a Louet mill (floor). I will keep the table top mill though, as its great for very short sample warps for my 8 shaft table loom.
Thanks again. I really appreciate your help. This Forum is brilliant.
Happy weaving Mary x