Agreed, but us springer owners do like to do exactly that. This was the only reason I sold my LGV... it just "felt" cheap and nasty, and didn't give...
Should it arise again theres another potential fix I remembered, a Nylon thread insert, had a 4wd Nitro RC car that loved to loosen its wheel nuts on...
Just to clarify, in terms of the functional design of the trigger mechanism the LGU / LGV trigger is actually quite decent, it misses one small trick...