My opinion? Best way is:
1) get introduced to a VC before you need money. Meet them through an incubator, a co-working space, attorney who works with VCs, another entrepreneur.
2) tell them what you're up to briefly and without hype: "I'm trying to get a prototype teleportation setup going between Philadelphia and Washington." Tell them you expect to have the first results in six months.
3) in six months, report to them (truthfully!) that you have overachieved. If you predicted the thing would have 3 customers, report 10.
4) tell them you now want to raise money and give them a clear non-hype account of what you want to achieve with the money (e.g., "we want to grow our successful customer acquisition scheme on slideshare") and ask them if they are interested in hearing the pitch.
why always attorney involved? is that mean all power come from attorney?