The Astro Flight 010 with Wemotek fan works well with either the Flying Styro F-16 or A-7. I have an F-16 and am very happy with the performance. The hard part was installing the fan in the tail. You need to make a couple of formers to secure the fan housing and that was difficult for me. I used 6 mm depron for the fan formers and they have held up well.
I chose the AF unit because it was plug and play verus buying a Razor 300 and fan separately and then balancing them. However, the Razor 300 might be a faster combo.
Either way with Li-polys, you can get the weight in the 9.75 - 11oz range and get good performance.
Hope the comments help,