Re: E-set meters
If the 80,000 count bag is less than 60 lbs, then Precision recommends 15"+. If the bag is above 60 lbs then they recommend 18"+. This is more than other vacs and you will possibly wear the lid seals a little more, but that is the trade-off to having better singulation and improved spacing. Precision also sells a vac gauge that reads higher vac settings if your planter gauge only goes to 15". Most meters if you increase the vac too much you plant doubles, and too little you have skips. Constantly fighting the setting. With eSet it is fairly simple...you want enough vac that you make sure you load every hole regardless of your seed size(s) or mix. If you do this, the singulator takes care of the rest and insures that any doubles are knocked off with the result being a well singulated seed.
Look at them closely and do your homework, and you will see why so many people are switching to eSets. Actually...find a Precision dealer in your area and tell him you would like to watch an eSet run on his test stand. Take your toughest seed to plant and have them run it. It would give you an idea before you ever purchase the units.
Just my 2 cents.