The only big Tigre engines I ever heard of being in demand for CL were the V's, from 51 to 61. I did have a 51 long ago, for a short while, then after it was stolen, never had another ST-V until this month, and I suddenly have three of them (2 51s, and one 60). (And only one airframe appropriate for any of the three!) Let's see what anyone else knows, shall we?