I think can help with lz scions. And I'm in Sarasota/Charlotte County.
That would be awesome INaba! Took me forever to get LZ to take, probably near 2 dozen tries, seems like LZ scions don't take well after a few days in transit. I'm in North County, near downtown, but I'm always driving; I'll PM you.
The OS I have on Atalufo rootstock is indeed very vigorous and very dense. Going on it's 4th year grafted in and I still can't get it to hold fruit, it just wants to grow. I girdled a few branches that caused it to flower, but it shed the fruit and went right back to vegging when they were pea-sized.
Super Julie does sound interesting, I think that every time I read about it on TAF, maybe I'll graft a branch now I'm not worried about a tree getting too big. Have you tried Giselle? Seems there was some suspicion it was being hyped as the hot new variety on the block.