Relic double melding with +1

[Ralliare]

Doe anyone know what kind of extra % chance you have with a +1 weapon (specifically mailbreaker but I'm looking for a general amount)

After breaking my first attempt at 17.5% chance I'm just wondering what the +1 chance would be so I can rule out or aim for +1's

[tymora]

+5% for double
+4% for triple
+3.5% for quad
+???% for 5th

[Ralliare]

Thanks a lot

21% chance, defiantly not worth the quad cost to buy, but i may get very lucky crafting.

[tymora]

x4 cost is actually quite reasonable in my opinion. Even x6 or x7 is decent.
It is not uncommon to go 1/10 or more even with ~20%.

[Mook_Mook]

pfft. not worth it. i dont know why the hq meld dont have a bigger bonus to double meld for these weapons since there whole point is to be double melded and turned into relics.