Well, with more experience you might confirm that your new system really is that awesome.
Another thing to keep in mind with efficiency is that all your volume measurements need to be perfect. If you intended to have 5.5 gallons at the end of the boil but actually ended up with 5 gallons, then your efficiency might be too high by a ratio of 5.5/5 or 110% (10% too high).
Ya. I am 95% sure my buddy has 11G, another buddy has 5.5g and i have about 16G in my Spiedel, But wont be sure until we rack it to keg because i didnt calibrate it beforehand. I bought a 60L and im pretty sure the small bump 2/3rds up is the 60L mark. The beer is about an inch over that.
These volumes equal 32.5 gallons, while in OP, you state 30.5 gallons into primary. That's a 6% difference and will surely throw off efficiency numbers, but if you have that gravity and more volume, your eff will be even higher, correct?
Franx Brew Workz
Conditioning: GHE via HoosierBrew with 835, German Pilsner Via Brulosopher with 835, Sour Saison on raspberries and something WILD
In Bottles: N.German Pilsner 2 ways with 835, Doublenut Brown, Evil Twin, Smoked Porter, EBW
In the works: Trad'l Bock, Doppelbock, Bluesman's Pilsner, Ballantine IPA, Saison split between lemon balm & blackberries, Dunkel