I recall there WAS a lot of problem with lithium batteries. Still is I suppose but not like it was. This guy was on the AMA frequency committie and responsible for the gold sticker program. I would say he is more qualified than most. Just heard of a 2.4 interference problem the other day. The plane was on its own for about 3 seconds. He thinks it was caused by someone crossing in front of him. That is not a problem with 72 Mhz. What we need is a much lower frequency band that we can use for spread spectrum. Seems obvious to me. That doesn't mean the 2.4 Mhz radios should be banned.