Thank you for your answer, as for different skis, I researched alot, and I just cant resist this offer so im gonna go with the poacher.
I know i should probably demo them, but i read that they are quite poppy, and they develop some flex once they are ridden a few days, so i think ill be fine with them.
What would be the benefits of the 184 except for looking better?
Right now i ride an old Salomon q90 in size 169, i like the twitchyness but i know its way too short for me.
For general, should twin tips be bought bigger or same size/ smaller as the person?
the general rule of thumb is right around your height, then add in factors like skill level, style, preferences, etc. For a solid skier a park ski should be right around your height, maybe a tiny bit less. if it's all mtn i say your height is the ticket. and if youre hitting big shit, for a charging/BC ski you might go over your head by a bit
so you're like right around 180cm, but youre a little lighter than your height might expect. K2s also run a little long i think, so that 177 is almost 180cm if i had to guess
i think you should go with your gut because either one will work fine. but i'd say do the 177 because it's almost your height anyway, you're light, you're not a super established skier (no offense, just assuming since youre asking for size advice), you're coming from smaller skis, and the poachers are relatively stiff and solid.
and honestly i'm a huge fan of bigger skis (and everyone online is gonna big-dick it without fail and say to go big) but it's honestly easier to make a slightly short ski work than a slightly long ski. and going big on size is the kind of thing you do because you know your shit and know that you want or need more length.
i'd probably mount at recommended mount point too btw, since you said this will be a one-ski quiver and you don't want to have too-short noses when you're in soft snow. people on here always say to mount center but that's honestly not worth it at all unless you ski 100% park and youre going switch like literally half that time
let me know if you have more questions on all that