I believe it is wise to build a few MPRs before trying to qualify for Level HPR.
It gives you experience in building larger airframes and stronger fins, as well as providing an avenue, IF desired, to learn the use of electronics for recover deployment. But the biggest advantage - in my opinion - is that the flyer can select a smallish HPR design, build it and fly it as a MPR to gain experience with it before that all important L1 Certification flight.
It gives you experience in building larger airframes and stronger fins, as well as providing an avenue, IF desired, to learn the use of electronics for recover deployment. But the biggest advantage - in my opinion - is that the flyer can select a smallish HPR design, build it and fly it as a MPR to gain experience with it before that all important L1 Certification flight.