Thanks. I’ll give it a try. My 2N5457s are from Tayda. I’ll socket them and see what happens.Generally, that's a good swap. IIRC they're fairly similar. You might need to socket and demo...I haven't done the ocelot yet, but jfets can be a pain in certain circuits.
I wouldn't trust Amazon jfets though. No telling what you'll end up getting.
Thank you. You’re too kind. I’ll message you.I've got a number of 2SK30s. Happy to send you a few.