That sound like a good idea, but imo instead of researching the Pers UT
(which in order to be effective needs
-a University =200W
-Murder Holes = 200F + 100S
-200W + 100S for the UT, which u can only research AFTER the castle is up)...
why not just pop a 2nd castle and be done with it.
Or I could be wrong, dunno.