Thank you again for your prompt reply. I purchased a 3-pack set of Comply S 200s. The hole is too big, and they do not stay on the ear buds. The 100s are too small. The 400s and 500s also seem too big. Guess I'll try other manufacturers, although I am happier since I switched to the largest set...

Hello and thank you for the very informative, enjoyable review. It was really insightful!   This is my first post, and I signed up specifically to ask you which foam tips you were able to use with the Sennheiser Momentum In-Ear headphones. I recently purchased a pair that are hopefully waiting...