Would you consider Pywallet a better option than the R-studio Professional license?

So far I have understood that when the HDD is formatted the data is recognised as 0 (compared to 1 before). making the file being recognised as (Free space).>
Then the HDD fill the rest of the unused space, before filling (overwriting) the 0 (the result of the formatted file). >

The only solution in this case would be R-Studio Hex Signature search with Known file search file .XML. According to the web Berkeley DB is the database library used in Bitcoin QT (core) back in 2009 So I have found the following signature of the hex file of Wallet.dat - 62 31 05 82


I have 0 knowledge about pywallet code but as far I as have read about it it requires basic knowledge with python.

If anyone knows someone with decent knowledge I am open for advice!