I had to itch to build another 5.5" digital quad after not flying my analog Remix for 2+ years. To my supprise it's supper efficient and there is no propwash. I flew it with all the 5.5in props I had on hand and the HQ 5.5x4x3 felt the best. The only issue is they are discountinued by HQ :(. So far I am really pleased with this setup and its one of my go to quads to fly.