Replying to Difference Between Armada Declivity 108 TI and Armada Declivity 108 X??

I'm looking to get into the freeride comp scene this year so I'm tryna pick up a ski that won't completely break the bank as I'm in college rn.

So what's the difference? I know they are different lengths and armada says they're more targeted towards a modern freeride comp skier, but is it worth the price difference? It would be like $400 less to get a pair of last years declivity 108 TI's.

Also looking at Vishnu Tanks, but I'm not super sure how well they're gonna ski at a big mountain level since barely anyone has skied them. Additonally, I would welcome any other recommendations for a freeride comp ski.