An update on this after 6 hours of code reading: I'm quite sure the code doesn't leak components of the private key when using --base parameter. So this may be

An update on this after 6 hours of code reading: I'm quite sure the code doesn't leak components of the private key when using --base parameter. So this may be safe. The part of the code running without --base is very complex and it would be difficult to share an opinion and I'm not sure that I understand all the sorcery (for sure the crypto people behind are very very smart)