Do future big shots know how good Long Mai is?

If Long Mai wants to tie the knot, it is good to find the Dragon Cave, which will make him prosperous. Being a big shot is expensive. Every dragon point is biased, and Ding Caigui is thin. What Ding Caigui can make is a treasure trove of geomantic omen, and no famous teacher or master is allowed. Therefore, Long Mai must have a master. Long Mai doesn't have to be a big shot.