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Who cares? It's awesome!! LP will get much bigger.
I was looking at Google images for both. B vagens is a red rump and it's abdomen is super red. LP looks much closer to what you have. Of course, you might have another Lasiodora species such as difficilis which also looks a lot like your tarantula.
It's very hard to tell from one pic, but Lasiodora difficilis looks awfully close to what you have. This is one of the most awesome popular species in the hobby. All Lasiodora get pretty big & a Lasiodora striatipes held the record for the biggest spider on Earth before T blondi was discovered.