Let me add that I can certainly play with seamless (at least the Xushaofa ones at the beginning). But I think they feel a bit like playing TT with a...
Answering the original question, it kind of depends on someone's level as to how much it matters. I get the impression that the OP is relatively new...
Yogi, in case you're interested, the infectious disease people where I teach say that people who have had the virus probably only need a single shot...