Here is what G&A had to say about it.

http://www.gunsandammo.com/first-look/first-look-ruger-sr1911-lightweight-commander/undefined

Ruger has addressed a problem all too common with aluminum-framed pistols by equipping the LW Commander with a polished titanium feed ramp to protect against excessive wear and resulting misfeeds.

Read more: http://www.gunsandammo.com/first-look/first-look-ruger-sr1911-lightweight-commander/#ixzz3OKZ5Q64p

There is no accounting for taste.

Experience is a great thing as long as one survives it.

Generally, there ain't a lot that separates the two however,
Barely making it is a whole lot more satisfying than barely not making it.