Need experts on modified endowment contracts

I’m looking for financial advisors, insurance experts and academics with tips on using modified endowment contracts. What are they, now do they work and how do they differ from other products investors might use for the same purpose? What is their primary use? The pros and cons? Risks? Things to look out for like fees or surrender charges? Tax treatment? Who are they ideal for and who should stay away from them? What else should I be asking? I don’t need a dissertation, just an easy-to-understand explanation in layman’s terms that will enlighten me and readers and provide a few quotes. Requirements: I prefer responses by email containing usable content and quotes, and because I usually get plenty I RARELY RESPOND to ones merely offering a source for interview. Please include the source’s contact info, full name, title, firm and location.