Hi Jaime, You have an interesting system. The water temp, however will probably skew your results. They will be far earlier than otherwise. I also think you give too litle credit to the Wall O' Waters. I used a max / min thermometer a ciuple of years ago and found 10 -15 degrees of improvement, depending on how sunny the preceding day was. The water temp in the WOW is VERY significant as is the temp of your circulating water. The proximity to the Ocean will also raise night temps in most cases. You might consider "Mountain Princess" and "Early Maturing Siberian" in your trials. I've had good results with both. I didn't particularly like "Sasha's Altai" and find "Dr. Carolyn", a sport from "Galina", to be more stable than it's parent. I'm trying "Clear Pink Early", "Early Wonder" and "Prairie Fire" this year. "Grushovka" is another long time favorite early variety for me. Good gardenng Chuck Wyatt