Replying to 179 or 169 hellbent?

first of all, apologies for yet another hellbent thread. read all the others...couldnt find exactly what i was looking for.

sooo im moving out to utah for the winter and ive decided to get a pair of hellbents. no other ski suggestions please, im set on hellbents...ha. but word, im about 5'9" 155lbs...so im kinda inbetween the two sizes.

i plan on using them primarily for BC jibbing and pow rippage, but would love to be able to mess around in the park with them and what not. so my main concern is whether or not ill be able to throw around a pair of 179s, cuz they will be seeing alot of spinning and flippaging both into pow and in the park. if they were a true 179 i wouldnt be too worried about it...but the true length of 184 kinda scares me, ha.

thanks amigos...any help would be much appreciated!