Moni_SLO from what i've been told,
all these have no vertical crown line (thank god)
single diamond - would play more like the retail version, slight draw bias
double diamond - slightly more pear shaped, neutral to draw bias
triple diamond (tc and ta versions) promote a fade bias, deeper face, more of a triangular look (reminds me a lot of the r9 super deep)
I've hit all three, double suits my cut the best. I loved the triple but my misses would be large flares to the right.
Hope that helps.
