Im worried about leaving it down and something hitting it. From what I understand that is the issue.
Often misunderstood. The 1911 hammer, when lowered, rests against the slide. The firing pin has moved (perhaps) halfway against the firing pin spring, but
does not protrude. This is the meaning of the term "inertial".
In order for the firing pin to travel all the way and hit the primer, it has to be struck by the hammer
at speed in order to develop enough inertia to overcome the firing pin spring.
A related misunderstanding is thinking that dropping the 1911 on its hammer is what causes unintentional firing in drop tests. It is dropping it on its muzzle that creates sufficient inertia in the firing pin for it to fire the primer. (Strangely enough, without any motion of the hammer at all...)
Titanium firing pins reduce the inertia and make the 1911 drop-safe, without the complexity of firing pin blocks.
So, Condition 2 is a safe enough method of carry -- the problem lies in getting it into Condition 2 without letting the hammer slip from under your grip (compromised by the bobbed hammer spur and beavertail grip safety) and firing the chambered round...
If you're really, really good with this, you then need to practice it with cold, wet hands (and an unloaded 1911) and see how it works.
Those with GI pattern 1911's need not play. Yours are already easy to put into Condition 2.