Kästle ZX 108/Paragon 107 ski length?

Hi,
I have been lucky to get some great deals on some Kästle skis. I do both telemark and AT skiing. I have accuired a TX88 and will get that in the longest length 183 cm and it will be my steep, couloir hunting, long day out and working as a cinematographer set up with a ntn telemark binding. Super easy to move around while working and the new TX Pro is great uphill.
I will also get either the ZX 108 or Paragon 107. I will go for the 184 or 191 cm length. The last Kästle Ski i tried was the BMX 105 in 190 cm something. It was a massive ski, but very old design compared to this skis. I am 183,5 cm and 85 kg and an advanced skier. Will use this set up with an ATK Freeraider or similar. 80-90 percent touring. Lyngen in Northern Norway for example. I have the Atris in 189 for example. I will use this on the days I want to go big in the back country in some pow and varialbe conditions or when working with lighter equipment as a stable base. How does this skis ski compared to the atris for example? 184 or 191?

No one with experience with those lengths?