You definitely got a great result with the FW poly.
Just as an FYI, and if you plan on doing more builds, you can do a DIY wipe-on poly for about 1/3 of the price of the bought stuff. You just thin whatever (oil based) poly of your choice 50/50 with mineral turps.
The wipe-on stuff you get off the shelf is just thinned polyurethane. You can also play with the mix ratio if necessary. 60/40 poly/turps builds a little quicker, but also requires a little more time between coats (but still quicker than poly neat).
I've started spraying all my poly and 50/50, 60/40 seems to work well in my guns.