Yeah but it be a selective open pollenation in a ideal world and if numbers allow that most would recommend over a full on herms and mutants and all you don't see many doing the second option so much tom hill maybe idk I can't think of many others
If the plant is inferior, I don't use the seeds from it. Bottlenecking is not necessarily bad. Everybody does it essentially even if you start with 10,000 plants. I'll have the capability of using those seeds from the plants I did not select if need be. And those plants may react very well in this generation. But selection is breeding. These plants have already been through hundreds of years of selection. I'm not working with zkittles. I'm not working with land race either, but these genetics are building block genetics of today's strains.
Depends on what your working with too. If you grew seeds from Taden Kahn's 20 acre field in Afghanistan you wouldn't have bottlenecking as a worry.