Just the mentality of it, azteca.. YP in FL are a much different strain but you are correct. Concerns here were water temp in summer but what wasn't really considered was my altitude. We cool off enough at night that my temps will max at 80 daytime with about 4 degs lower on bottom. usually see about 78 average and my Northern YP from NE Colorado have done extremely well. The one thing I still see (but less of this last year) is YP struggling through the 10-12" stage but once you get on to 13-13.5" they are back up at 100% WR and above.