Thank you Ernst, the Excalibur you built flew perfectly.
Thank you Artur, your design works very well in DS.
Finally after a long time since receiving the newer stronger wing center panel and stiffer fuselage boom, the Excalibur got the opportunity to have several 300+ mph flights, with many DS laps in the 320 to 330 range. The airframe is very strong, only a very slight wing bend during the fastest laps. I look forward to push it harder in stronger conditions.