Guys there is no 1 method to repacking when it comes to fitgirls repacks.Different games different encryptions.different methods to unpacking different large pack files and then repacking them ,also requires the correct md5's.different compressions for different types of files.i have said this before research different file types and how different compressions affect the final compression.
there is no best version of srep and precomp or 7zip its understanding the file types for that title.You might only need srep for a title then next you might need srep uharc precomp.
You also need to sort throught all the different file types to use certain compressions on those and the next set can use something else.
So time to forget the best method that repackers use,there are tons.even if you have all the repacking tools you still need to understand how to apply them.
Times to use the best tool available to find how to compress files and it starts here:
www.google.com :-)