Got the calftail dyed the shade of golden yellow I was looking for using Koolaid Pineapple.
There's a great vid on Youtube (although it was a bit light on the hackle for the places I'd fish it)



hook - Mustad 94840 #8
thread - UTC 140 cream
tail - calftail golden yellow
body - Congo Hair cream
hackle - black
wings - calftail butts (from tail) trimmed

Regards,
Scott