cheap meter is great
I've got a couple of the cheap meters and have learned how to use them.
Much as described above, I keep adjusting for about 8 on the meter....
If the signal goes above 10, turn down the gain to 8...
If the signal goes below 5, re-aim or adjust the knob for about an 8-reading.
Much easier to do than to describe.
When you do find a strong signal, it's wise to check your receiver to make sure you're on the right satellite, and then tune for maximum smoke.
I'm pretty careful about using a compass (and compensating for local magnetic offset) so I hardly ever "find" the wrong bird.
Once you are used to using the meter, you may find that a plumb pole is no longer even a consideration.
I once aimed a Dish-500 using a 15 to 20 degree off-plumb pole with the meters, and it didn't take very long.
Worried the heck out of me 'till I was done.
Having done it once, I'd never hesitate again.
Having said that, please -do- start with a plumb pole.... at least 'till you have the feel for it.
Your mileage may vary.