I installed the Deore XT fd and the indexing seems right so I’m going to leave it at that. Thanks for the assistance.

I created another problem as I changed cassettes on the same bike. I went from an 11-28 to an 11-36 for the local hills and for therapy on my gimpy knee. Now the rd idler interferes with the largest two cassette sprockets. Don’t know what to do except to go back to the 11-28. I’m enjoying learning this stuff so I’d welcome assistance on how this should be addressed. Thanks.