So I want to set a couple points I can hang from indoors, but I've got a couple questions. First, I'm thinking I'm just going to go with those D-rings-on-a-plate dealies (no idea what they're called) that are used for tying down stuff in the beds of trucks and such. Thinking 3.5" lag screws. Also thinking I'll just go into a single 2x4 in the wall rather than a horizontal 2x4 across two or three studs, but I'm more than willing to do the horizontal ones to spread the stress if recommended. I'm only 150lbs, so keep that in mind.
Any input on the above is much appreciated, and here come the couple questions:
1) Right now, I have a WBBB, but I also intend to, someday, have a WBRR. About what distance would be ideal for the flexibility of hanging both? Can I use the same distance apart and height up from the floor for both?
2) Is it best to have the suspension come off the bracket/ring thing at 90° to the wall (so pulling in the same direction as the screws), or at some angle that is not directly parallel to the screws?