Let's be honest, the 'weight amendment' for the featherweights was more driven by a personal desire by an individual(s) than a programme of harmonising weights between the US and the USA.

On the issue of 'adding 10% to a weight limit makes life easier' - I do think I need to point out that this is all totally arbitrary. Why not stop there, surley adding another 10% would make it easier still so why not go with 1.6Kg.... ? Changing the weight doesn't make any difference to how hard something is, it's a limit, and people will always try to build up to that limit. Just like the change for heavyweights from 80Kg to 100Kg, I would challenge a member of the audience to spot the difference, and I can assure you that building 'new' for 100Kg is just as tough as building 'new' for 80Kg.... yes you can do more with the weight, perhaps thicker armour than before, or a better weapon - but it doesn't get any easier to do.

Sorry if that seems like a micro-rant, but tweaking weight classes in the name of 'easier' building seems a waste of time. 1.36Kg is just a number, 1.5Kg is apparently 'easier' to build.... 1.55Kg would be easier still (apparently)... except it's not. Everything scales with the weight.

Rant over.... leave it as is

Ed