I must have misread the spread earlier, I don't blame you as I can clearly see the spread in the OP now but you're trading HP Ice with 30 speed? This is an issue because at level 50, a timid Jolteon drops to 199 speed with a 30 speed IV, which means he loses to every other base 130 speed with 31 in the IV.
For some reason I was under the impression you were trading 31/even/30/31/31/31. Again, this must be my error as it clearly states in your OP the IVs you are trading.
Can we revisit the trade agreement? I understand from your post you're still really interested in the Spiritomb, and we are still interested in the HP Fire Roselia.
I would like to return the Eevee instead for the Roselia, essentially revising our trade to be Spiritomb for Roselia.
If you don't want to do this, we can still continue with the trade agreed earlier tomorrow.
Cheers.
I understand. I don't mind to get the Eevee back and offer a HP Fire Roselia while my main interest is the Spiritomb. But please give me time to breed a HP Fire Roselia. It is currently not available, still breeding for it :)