Its hard to say whether modern methods are better/worse than 30 years ago, what is beyond doubt is that the pigeons nowadays are faster than the doos of 1980. In those days most lofts would have had Larger birds than they do now, doos with big Wattles and seers, broad heads and broad "shoulders". Today's birds are much smaller and, unlike 30 yrs ago, you can hardly tell the difference between sexes in some strains, this change to what i refer to as a European Type of doo, may well have reduced the homing instinct of the birds too. Also a factor is in those days was how FEW Peregrines were around compared to today, i think the lack of 2nd day birds turning up compared to then is down to the BOPS. jmo's