Echo 2620T recent purchase : USED trimmer today approximately 2 hrs., 50% of time WOT. At finish I rubbed my hand down drive shaft to remove debris and noticed the lower end (approximately 15-20 inches) and gear housing assembly were to hot to touch. Normally would have been wearing gloves and not noticed. In a few minutes it had cooled off. I've been using a trimmer over 40 years and never actually placed my hand in that area immediately when stopping. Therefore that may be normal, I don’t know. Any opinions.