Were you aware that in addition to original brand picks from Cassin, there is a mixed pick available from Howey Tool based in Ontario. howeytool.com - X-dream replacement pick
I don't have familiarity with the X-dreams however I did get a chance to climb on the Howey replacement for the Nomic. I really liked them but obviously different picks. Just throwing it out there for options. Cost wise they are $40, plus shipping cost of around $10.
In a no brand specific situation, it stands to reason that an ice specific pick should outperform a mixed pick for pure ice routes.