D-Fruit
Also I would like to make a couple of suggestions...
Create high success (or even better, 100% success) formulas to SPLIT newly created alchemy items like the recolor of kitten star, into it's base parts.
This way the old items CAN'T technically be lost, and it will create a smoothing effect in the market and more incentive to craft the new items as the user knows they can recoup their old items just by consuming some more gold and perhaps some really common components.
Edit: Or maybe instead of introducing formulas to split the alchemy items it could be a service offered at the Bifrost to split them into their base parts for a gold fee (and maybe consumption of another copy of the formula that originally created the item)? Reverse transmutation service or something?
Also a suggestion involving the problem with formulas to create old cash shop items having to involve items that cost cash in their creation (and the effect that has upon their rarity and price in the marketplace). zOMG! originally used items called null fragments in the crafting of it's recipes. The null fragments could be bought for cash in the shops at that time. Why not use a similar "cash exclusive" component item to craft these old cash shop items instead of items found in those old RIGs?
Though I don't necessarily
mind guaranteed success, it would also defeat one of the primary purposes of this feature, which is a Gold Sink. If people knew they could craft certain items without any possibility of losing gold, they would just use those select items to level until they
have to use items with the factor of probability.
Those the reversible Alchemy has been mentioned a few times
3nodding Either way, they WILL have to find continuous methods to re supply the components, this they have already mentioned as a fact.