Bip39 Length Default number of iterations used in wallets is 2048. Rising this range ought to ensure it is safer from brute drive attacks, nevertheless you'll have to keep this price. To access your wallet with customized PBKDF2 you ought to use this script (or related) to estimate your BIP39 https://isocialfans.com/story4000092/bip39-wordlist-download-the-fact-about-bip39-phrase-that-no-one-is-suggesting