A 159mm!!!!!!!!! you need to size up quite a bit my friend; you'd be better off 'snowboarding ' down the slopes on your bare feet. the board's measured in centimeters and I'm sure millimeters was just a typo but that really stood out to me lol.
The flying V is just a camber profile though, so you're probably riding a Custom flying V or Feelgood flying V(those are the only ones I can think of off the top of my head but there are more). Regardless, you won't have any problems except for what is normal when learning how to ride. Try not to think about how your gear may or may not be affecting you as it'll just throw you off. If you learn to ride with the boots, bindings, and board you're going to be riding for the foreseeable future that's all the better for you anyways. Just try to have fun and hopefully you're getting lessons; they make everything better for you in the short and long term meaning there's no reason not to get them except $$$.
The LTR is a piece of junk pretend they don't exist.