a few warlock healthstone questions

[Krinkov]

so ive been leveling a warlock..dinked 10 and learned the HS ability. Much to my dismay, unlike in retail you only have 1 charge on the healthstone

but I heard it is possible for every class to carry multiple healthstones(minor, regular)..is that true? Do the healthstones in vanilla share a CD with grenades like they do on retail? Also I heard you can use multiple healthstones ...like the talented ones where a lock put improved HS for 120 HP gain and use the 100 HP and the nontalented ones?

[wadafruck]

Each healthstone is a seperate item for purposes of carrying only 1.

You could have an hp stone for 100, 110, and 120 all in your bag.

They all share a cooldown.