my thoughts, for what it's worth...
why would one want to maximize air flow by going to heavier and more bulky 2.5 hose, only the restrict airflow by having a solution hose snaking thru the middle of it?
Hide-a-hose is great for upl tools.
But not so dandy for CCing
imHo, of coarse
a 1/4 in hose would only cut back so much and depending on your feelings about heat(I love it and think it is the most important) I think space for a hot line is well worth it