Well, I got a replacement Magnum back from Global Hobby Services today. I posted a thank you thread in their forum ([link=http://globalservices.globalhobby.com/globalforum/viewtopic.php?t=2605]My thread on the Magnum Forum[/link]), along with a suggestion to improve service.
I personally would love to buy from them in the future (don't want Tower to control the whole business), but will have to think twice about it. IMHO a Customer Service Department too busy to return calls is a possible indication of the lack of quality in their products.
It won't be another Magnum when I do make that purchase though. I purchased it because I was getting back into RC and didn't want to spend a fortune, but ended up grounded for six weeks due to a defective product (they didn't tell me what was wrong with it - chipped cylinder liner I'm guessing). On top of that, I had to pay another $16.75 for the warranty work to be performed.
I think I'll pay that amount up front to reduce my stress level by purchasing a quality engine (OS, Saito, etc......).
Also, if this engine breaks again I'll take it apart to see if me & club members can figure it out. If ordering the parts isn't an economical option (time wise too), it'll be heading into the nearest trash container. Maybe I'll give Magnum another chance in two or three years......
Anyway, I'm a happy camper. Time to go flying!!!!!