Ok i read this in another post --->

Do you have your Grandmaster Assassin's Seal?
It makes trying to skill up so much easier.
(seal means you can have advanced vials available more easily)

Now, from what i remember (or have guessed) this is the benefit... You can convert POP only (???) poisons into 5 or 10 shot ones.... When you convert, you get back 'free' empty vials, that you can reuse?

Is this correct, or could someone expalin this to me.
Thanks!

can you do this with the summoned poinson form Ornate Legs?

Thanks again!

Yes.

The Grandmaster Assassin's Seal allows you to summon a Coffin Bottle, which is a 10 slot bag with a combine button. When you place ten of the same PoP or later poisons in the bag, hit combine you get the vials used to make the posions and a ten charge posion (similar to the old SoW potions).

With the Grandmaters Assassin's Seal, I've been using the same Advanced Poison Vials for the last 2 years.

When combining the Stanos pants poisons, you get a 10 charge poison also.

Thanks Durden (or Durdaen), thats exactly what i needed to know.

Something worth noting -- If you are making Scoriae Bite for skill ups, combine them into a 5 dose rather than a 10 dose. The 10 dose can't be sold to a merchant, but the 5 dose can, and you get back enough plat that way to cover a really big chunk of your costs. No, you don't make a profit, but it can help to keep you from going broke quite so fast.

The 10 dose Scoriae Bite sell for 209pp and change to merchants, the 5 dose sell for 93pp and change to merchants. Yes the 10 dose are sellable (not tagged as no drop/no trade) and you make over twice the pp as the 5 dose. I do know that the 10 dose is sellable as I've been using this recipe to max
Master Toxicologist Trophy to my Peerless Pestle.