over a year to late sdaji
Huh? Over a year too late for what?
Tankster: I would definately not try soaking and then squeezing, this will work for vermiculite but not perlite (which I recommend you use). I haven't really tried, but I think that if you tried squeezing moisture out of damp vermiculite you'd end up with something starting to resemble clay which is still too wet to use. I stopped using scales to measure the water a couple of seasons ago and my results have improved dramatically, although it's probably best to use scales at first if you're unfamiliar with judging the appropriate quantity. With vermiculite, you have to keep in mind that there may already be moisture in it, so if you weigh it you'll think you have more than you do, and you'll end up adding water to water, leaving you with far too much water. It's not unheard of to buy vermiculite which is already about 20-30% water by weight, so if you added this to an equal weight of water, you could have approximately 35% vermiculite 65% water, which is far too much, this is why I stopped using scales. When I did use scales to make the initial mix I'd always end up making adjustments to it over the next week or two anyway, because it was always out.
If you have the opportunity, visit someone who is incubating eggs, see how they do it, and play with their water:vermiculite mix to get a feel for the appropriate moisture level. Alternatively, just use perlite, with which I'm guessing (and only guessing) you could get away with mixes of between 1:2 and 2:1. Perlite is like this because even if you've used 2/3 water (or I'm guessing even more) the perlite is dry to touch, but the humidity in the sealed tub will be close to 100% Vermiculite on the other hand will soak the eggs if it's too moist and not give sufficient humidity if it's too dry.
I'm guessing that the suspension method is probably better still, but I haven't tried it, partly because it's difficult to set up and mostly because other methods work really well anyway.
Good luck with whatever method you use and let us know how it goes.