No, although I did try a Tempress. I liked it, but at the same time I started wearing a waist throw bag, and even cutting the tempress down I couldn't get it low enough. My pfd is a longer one, a Force 9 high float. Add the waist throw bag on and it was too bulky. Plus, I accidentally rowed my raft briefly without any seat, and absolutely loved how it made my back feel. I had thought the high backs were helping, giving me support, but what I really needed was to move it. So I went with the low back tractor and haven't looked back. I feel I can brace very well in it too, probably not quite as good as a high back but everything comes with tradeoffs.