I ran both front and rear engines past 2100 hours. It was not a problem for me because I knew how the engines were running, the compressions, performance numbers, etc. So, it was never a big deal to me as an owner operator. In fact, I never had a serious problem with an engine until I changed my rear one out.
However, if I were going to purchase a different bird, I would stay away from high time engines unless steeply discounted because I would not have first hand knowledge of how they had been running and the performance numbers for the last 4-5 years.
FWIW
Keven
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BODY SCIENCE