You do not want to use any type of silicon caulk. If you ever have to remove it, it's a bit-h to remove, you cannot paint over it, nothing else will adhere to it, even new silicon. And if you do have to remove it, it leaves a residue that nothing else will stick to unless its totally removed.
Just use the tried n true Dicor or it's equivilant non sag caulk.
Grumpy