Thanks Bill C for such thoughtful questions. This is just more evidence of why you received the Willis Legacy Award.
In my way of thinking, my cool water pond here in Colorado might be better suited for PS and YP rather than the YP and LMB with only a few BG and GSF that are presently in it. I'll be following this thread with interest; depending on what we learn about combining YP and PS with SMB, I may be ready to renovate.
PS are a favorite of mine. However, I don't know where I'll find any for sale way out west.
