Been a truck mechanic for 30 years. The IR your dad has is awesome. The composite models (plastic bodies) are lighter but don’t last long between rebuilds. I had a metal body CP that last for at least 15 years. I just purchased a composite Aircat a year ago, no issues yet, but I dont expect it to be as durable and long lasting as the metal body impacts. Love your channel, I learned about your channel from my wife who was told about it from one of her patients ( she’s an oral surgeon) then I was watching one video while my helicopter was having maintenance ( I fly Medevac for a children’s hospital with 2 flight nurses) turning my one flight nurse onto your channel so we all talk about how much fun it is to learn the inner workings of a farm. Btw my one flight nurse just loves Grant as does my wife. Lol. Little side story,I married my wife a year after we graduated in 98 which we were dating since our freshman year. Lol Oh and congratulations on 300k subscriber’s.