Will probably end up getting a CC soon, (either that or a vanguard)

At 70 - 72KG/intermediate would I be best on a 5'9 or 5'10.... will mostly be used in UK waves and overseas on trips in a range of waves nothing really over head and a half.

Iv gotten on well with the vol on my dom and ef that are a similar vol to the 5'10 but cant shake the feeling that dropping to the 27.5 L of the 5'9 might be an improvement for my surfing in the long run.

However reading the comments that the tail is very sensitive makes me think maybe il be better off with the 5'10 as maybe it will be just that bit more stable especially with the extra rail length, plus the sensitivity of the tail may mean I dont need to go down further in vol then i have so far. I should feel more performance then my ef and dom based on more refined rails and the tail right?

So my question really is, with a sensitive tail and more pinched rails do I go less or more on vol. Is it likely the tail will end up making it too sensitive for an intermediate if I go low on volume?

Im probably over thinking it and both will work, too many choices creates too many questions for me

cheers