I am astonished. I have been in Wisconsin all my life but still never tasted Lazy Monk beer. My sister went to Eau Claire, my brother went to Stout. I've been over there. Never made a connection that I kind-of know a brewer out there! You are now on my radar!
Regarding the yeast thing -- the Omega yeast is listed as equivalent to both 2124 and WLP830. However this is of course not possible. Genetically, 2124 is nearly equivalent to... WLP029 Kolsch yeast, which is actually a pastorianus lager yeast! This might explain how it performs so well at warmer temperatures... what if the Omega yeast is actually closer to WLP029? Meanwhile, WLP830 is more closely related to... 2278 Czech Pils.
In truth, all of the above are pretty closely related. When it comes down to choosing one over the other, it's all personal preference based on a lot of experience, either that or, a total guess.