Nice work. Love the smaller frame - looks like it would have a lot of power. I have one similar to that and it is an awesome little FPV rocket.
To date I've only flown 5" crap props, will be running 6" soon, when I finish breaking all the 5's😏
AUW with 1300 4s is 599 grams, a bit porky by today's racing standards I guess, but it's pretty tough and only one piece.
How about you, anything new?