I have the vortex32 with the p20 and retracts. If you need any info let me know and I will be happy to help. I have been flying mine for about 2 years and I love it . I also have a boomerang Elan and the fly about the same for a small jet it is very stable. and great for short runways. I fly it mostly on grass and it does great you just need the grass cut short.
Here is a video of me flying mine.
https://www.youtube.com/watch?v=zmxUV30sCsA