I just completed my 40 hour test period in my Lancair IVP. Yes, breaking in a new engiene versus test flying a new plane are at odds with each other (go slow/ go fast). However the flight envelope on the LIVP is well understood. It is more like production test flying than experimental test flying. I broke in the engine first. No problems-- for good advice talk to Charlie Kohler. Jeff Edwards
LIVP N619SJ