Lagat at his best around 2003-4 might have run very close to what El G ran, 7:23. Even later when he toasted Bekele with a 51.9 close to a 12:59, he could surely have run mid 7:20s. I think Grant Fisher has everything he needs physically to break 7:29. The question is whether he will have the mindset in a field with top East African athletes to get on that pace. If Aregawi's in the field, that should help a lot. A setup time trial in cooler weather might be more conducive for Grant Fisher to break the record. He should also go for Lagat's 5000m record before he's done this year. His indoor record is only 0.13 from it.