Did you bump up your Property Damage Liability to $300,000 because it was inexpensive to bump up? It is usually an inexpensive item to increase. Or do you plan on causing more property damage than bodily injury? Perhaps you know someone who has driven into a building causing property damage?
I am not saying it's not good to have higher property damage liability, but a typical accident you might hit one (possibly) two cars, maybe three cars. So you have awesome property damage coverage if you cause a pile-up accident, drive into a building, knock out a power pole and electricity to a business, etc. Odds are you will cause more than 50k/100k in bodily injury than 300k in property damage.
Full Coverage is not a real thing. I wouldn't trust any agent who uses this terminology.