This has to be one of the daftest or most naive comments I have seen on this forum for a long time - or just plain provocative? BIL was a complete wreck whereas 35028 has been maintained in Rolls Royce condition for the last 40-50 years by people who know her inside out. Yes she has run perfectly, but it was a risk. If she had failed and missed some of the 50th anniversary runs whose approach would have been criticised then? The fact that BIL is being eased back and adjusted after each run is entirely sensible, what a preserved line would do no less, but no doubt West Coast would also have been criticised if 35018 had been put on a run then failed, due insufficient testing..