I think the procedure should be simple - and verifiable.
All signature for every polling station or say sub-county IEBC office should be printed and posted there for few weeks - say 21 days - to allow anybody to object to the inclusion of their signature.
Also all signatures should also be online on IEBC website- available - for objection.
Also all signatures should be printed on newspapers.
IEBC should not be hurried by Raila.
Step 1 - IEBC should do the first pass verification - to ensure they have details matching their IEBC database - ID number/registered voters.
Step 2 - The clean list of signature passing step 1 - should be printed.
https://www.tuko.co.ke/398846-muslim-activists-sue-iebc-bbi-signature-verification.html