thank you for this great explanation. you are really clear. i learnt a lot. cheers. i am going to read other post you suggested also

https://steemit.com/minnowsupport/@siddartha/what-should-minnows-and-newbies-do-now-that-hf19-has-been-implemented-minnowsupport-project-whaleshares-whalepower-and-more