Very interesting! I'd like to have the opportunity to listen to the whole episode when I get into handloading again. I'm sure a lot has changed over the past few years.
BUT, about loading the bipod on free-float handguards, I think it's heavily dependent on the design of the mount and the chassis. They mentioned that some flex has a significant impact on the harmonics of the barrel system and even describe a method of testing this. The method they describe is not a great one because it does not decouple the effect of loading up the bipod on the shooter. If someone is comfortable and practiced in shooting a particular way in a particular sequence, asking them to dramatically change the way they shoot could very very easily change the groups they produce.
More to the point though, they seem to suggest not loading up on the bipod at all, and it's given me a lot to think about. If I accept that loading the bipod in a consistent manner changes the harmonics of the rifle system in a consistent, then I also have to accept that load development can be tuned *for* a given system to produce consistent results. But without the load, all that force is reduced significantly.
Since I'm just getting started in this adventure it's difficult for me to judge content because I don't know the knowledge or skills to put into practice some of these concepts.
Thanks for pointing me in a fascinating direction with a very interesting resource. So much to learn!