No females have shown up so far on the 1789 plant yet. Tom says that the 1725 Harp (the mother of the 1789) tends to not throw a lot of females and they can be difficult to get the pollinations to take. He should know. He grew thirty 1725 Harp plants last year. The main on this plant is growing really fast right now and in the next 2 weeks or so it is going to run out of space so I'm hoping a female shows up in the next 3-4 days.
Latest pictures from the patch are below. The 1789 is about 10 feet long now. The 1451 is about 8 1/2 feet long: