Running 50 strategies at the time and then running retest in Costum projects I find that a lot of strategies have the same code and some even are 100% identical on the pip. So we would need to have a check for this as well before moving to a Final folder. You cant today not run to many strategies at the same time before testing especially if You do heavy tests you will run out of memory so you have to minimize the run and restart the build. But then You get this issue with identical strategies which in away also point to that when You restart the strategies are generated in similar order maybe and the random ness is limited in some way. So maybe have a random "new" selection of building blocks would be better.