Glad you enjoyed the build, I had a lot of fun working on that project.
I don't know if the sweep of a V-tail adversely effects its tracking. For the few flights I got with her, she seemed to turn very nicely. As far as recall, I can't say I noticed any major issues. If there were any, I'd be inclined to look to the aileron differential as a way to tweak that Vs reworking the tail though.
The sweep was added, not just too look cool but as a way to limit the needed length of the tail-boom by hanging a large percentage of the v-tail out past its end. That gave the necessary tail moment while minimizing the length of the somewhat spindly boom I was using. I thought it was a rather clever solution but maybe there's something to your theory *shrug* ?
Anyway this design has been retired or more accurately, reworked into a new build. (At the time I'm writing this) I've not yet re-created the new tail so maybe I'll look into the pros & cons of a swept V-tail & make adjustments if necessary. Thanks for bringing it up.
Glad you like the soda-pop bottle canopy technique. I'm a big fan of that too. I'm hoping to get back to the rebuild soon, I'm a tad distracted with another project
right now though. Happy building Jim.