Thank you for your replies I ve red in planchemag the specs for 2017 whrereas for the 84 2018 long 224 cm width 56.5 a 30 cm width 34.5 flat area 50 a 80 tail kick11mm Scoop 2/7/27/114 mm 6.5 kg
So in 2018 little less flat area a little more kick and scoop
Searching for Keeping speed or better accelerate through turn - good planning handle chop and acceptable jumps characteristics
I think both 2017 and 2018 are good maybe the 2017 is more friendly I will go for the 106 2017 or 104 2018