I have never had it, but based on a tripel I just did... I would guess most of it is the pilsen... like 75-80% 2.5% Oats, and 2.5% Aromatic (or more depending on the amount of pilsen you use.) 15% candi sugar (I see some recipes with as much as 20%). I used WLP500 for my yeast, and have been happy with it so far. I used Kent Goldings for bitter along with some Hallertauer for finishing.