I have both models with the Astro in Pusher config and Blaze in EDF. The Blaze needs the center of gravitiy a lot further back than the Astro; probably due to wing design. Both are fun but with the same 3s power the pusher prop motor wins. I have upgraded the EDF motor to the Freewing 3500kv to run 4S and it did bump up the speed somewhat.
Already going to modify the Blaze as pusher configuration to run 5-6 cell lipo; with the Prop-Drive 1800kv motor.
Planes are super fun to fly and have lots of elevon control; so use expo if preferred. I have also upgraded the ESC to 60 amps.