Paul, great video, loved hearing the change in the way the cleft sounded. I watched this video with my 6 year old daughter (She has never played cricket but loves coming to watch me play, mostly for day in the sun running around eating hot dogs etc.

) She heard the difference more than I did and then proceeded to explain to me how/what the difference is

. She was disappointed that we could not see your shaping video on the mobile, so we have that lined up to do tonight on the laptop.
On a funny note: She likes your Jeans (2 flaps on the back pockets, yup girls notice everything), your workshop is nice/clean and asked me where you are from, when I said England she said is that why you sound different in a funny/nice way like you are eating hard candy while you talk.. lol
Good work, thanks for sharing your technique.