I'm looking to buy a used '79 Ric 4000, and I'm wondering if anyone owns or has played one. I just have some general questions (i.e. does it keep its tune, does it have a good neck/bridge, etc.) Also, does it have a second "Rick-o-Sound" input jack like the newer ones? I appreciate any help someone can give me, and I'm sorry that my first post here was a REQ thread. Thanks again.