Thank you for calling me out on this one ↑ and @Axamer Please forgive me for highjacking your thread on the 188cm vs 180cm FT62!

A good example is testing a "short" Ingstad BC against an equivalent-length FT62- I have tested and compared the Ingstad BC in 185cm/195cm/205cm against the 188cm FT62. For my size/weight I do not see any advantage to skiing a shorter Ingstad for hopes of improved turning performance- there is no contest- the FT62 is a better downhill ski.
I am finding a very narrow use for my 188cm FT62 in my local skiing touring context.
I sometimes wonder the opposite of what you are wondering- I sometimes wonder if I might have better off with a shorter FT 62 with an even shorter turn radius...
That being said I can easily make short radius turns with the 188cm FT62- I am not about to buy a shorter FT62 to find out!
Everything being equal a longer FT62 should be more stable than a shorter one- especially at speed...