I'm loving this crust combo... Apple Pie FA and Pound Cake FLV pairs very well to make the perfect crust IMO. I first used this combo in my Peach Cobbler recipe and it was good there also. The cinnamon note is subtle and the apple note is on the light side, as I didn't want a overbearing apple flavor... just my preference. I'm fairly certain the MF Green Apple can be subbed for Fuji Apple FA @ 1.5-2.5% depending on how strong you want the apple note to be. The Liquid Amber really cooks the apple with the sweetness/fluffiness from the marshmallow adding a pie filling feel to the mix.
This is a basic Apple Pie recipe, but it's very tasty. If you want to hype it up a bit, try adding a little Vanilla and Cream or Ice Cream (your choice) will add an extra flavor layer if it's desired. I would advise to keep the %s low as not to overpower and mute the pie notes.
Oh yeah... A little butter wouldn't hurt as the the butter from the Pound Cake is very lite.