Share '#6 Tile Clay with 5% Bentonite Slip'

Hi Folks, Does anyone have any feedback on slip made from #6 tile clay and about 5% bentonite? I use both Loafer's Glory and Standard #470 Wood Fire Clay and fire a noborigama with a light salt/soda chamber. I have heard it works out well, but don't want to commit anything I really like until I get a few more opinions. Thanks in advance, Bruce