Anyone else notice that the slide catches on the Springfield 1911'a are MIM (castings) and still have the mold parting lines on them? The little lines cause burrs which are bad because they cause malfs and cracks. They are not machined and round as they should be. I've replaced the ones on the last two Springfields I bought recently with Wilson Combat slide catches which are machined to .200" like they should be and are smooth and round.