Aussie, this isn't going to be much help to you but I remember looking at both bulls at Agribition 2009 in the stall and personally I preferred El Tigre but I truthfully do not remember for what all reasons. I do remember watching Tiger going to tie outs and thinking that he had some movement issues but these are not uncommon in a big bull after being tied up all day and I know one breeder I greatly respect said that Hamiltons always had him moving good on show days. As far as progeny that Tiger calves have definitely had success and I believe that there was only one El Tigre shown at Agribition last year.
To me the best thing about these two bulls is the cow family as the Echo family would have to be considered one of the best in Canada for the last fifteen years back to the original Duralta Echo who was truly outstanding in my opinion and this has continued down the line.