I agree on this the Patriot dually had many changes but from what I've heard the only change on the Extreme VFT had non. To be sure check out the www.bowtecharchery.com and if there was it should tell you there,if you contact Pat Dinnan at Bowtech he'll fill you in for sure .This company is above the rest when answering your question's.
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Good luck on your choice
nubo