The Master Trade technology states that it adds 3 trade routes, but it only adds 2.
For a race with no trade route bonus
TRADE only: 4 routes (Trade adds only 3, so I guess there is a base of 1)
+ADVANCED TRADE(+3): 7 Routes
+MASTER TRADE(+3): 9 routes only
I have tried a race with a trade route bonus, but that did not seem to work properly
