If we go back to the tweets sent out by Matt Tombs yesterday "lots of horses in the c130-160 bracket are rated up to 10lb higher than horses of the same ability a decade ago." I've thought the same for some time, and it has been the backbone of my selection technique for years - to take advantage of this anomaly I seek out young, improving chasers that have shown the speed to achieve high ratings but have yet to fulfil that potential on the course; because once they do my advantage is lost (unless I think they are capable of much better, and a good recent example of this is the chaser Wakanda in his 2nd-season who won 3 races in succession).
Tidal Bay (once rated OR166) winning the Bet365 (handicap) Gold Cup at Sandown off OR154 (carrying 11st 12lb - and he went on to be subsequently rated OR171);
Neptune Collonges Grand National (handicap) off OR157 (he was rated OR174 when 4th in the Cheltenham Gold Cup in 2009);
Denman twice winner of the Hennessy (now Ladbrokes Trophy) off OR174 and OR161 with 11st 12lb - what is interesting is that the common denominator of these top handicap winners is the trainer Paul Nicholls - who is also the trainer of Frodon.