I never liked just sliding the racking tube onto the cane, not sure why but I always found it a PITA. Now I do not have to bother with it, I put a flair fitting on my racking cane so it will be easier for me to swap between the hoses for filling a single keg, multiple kegs or transferring from one vessel to another.
httpss://lh6.googleusercontent.com/-0u_TJGnqwWo/VImY-QcYVZI/AAAAAAAAGcE/pUPB5Bhd3KM/w464-h525-no/3.jpg