Can somebody answer this simple question?

The Enfield No2 Mk1 had the hammer spur, the Mk1* did not. I have heard many a time that the armourers lightened the trigger pull on the Mk1* but I can't seem to find any evidence of this being widespread or even undertaken on anything more than an ad hoc basis. Some people are adamant that this was the case, but from all the ones i've tried, it would seem there was bugger all difference!

Anyone any idea?
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