Yes Rod, I have. You will find the pictures attached and for the 28 I used the back piece, I am planing to use the tip or for a 5-5 or a CC.
Best regards,
Rolf.
P.D. there is a company in internet where you can buy in the States Hippo or warthog Ivory, the warthog is also very good to work, I already made one 10-3 and a triathlete, and they looks also great.