So I'm about 10 days in and still loving this thing. Yeah I think there's some quality issues with the CU, but YLL is sorting that out with a new design.
I want to sum up the "problem" with the cooling unit. Let me know if I get this right. The CU has 4 plastic parts, top, bottom, lock ring and screen lock (the part that the screen locks into). It's a bit confusing (with 54 pages of FU) but from what I can gather the Top and the Bottom are non-controversial (made of PEEK??). The controversy is in the screen lock ring. Apparenlty YLL could not produce that design in PEEK and another plastic was chosen. YLL says it safe for the designed uses, but others here disagree. Also someone posted a picture of a melted screen lock ring(apparently the result of combustion?). YLL is planning to replace the plastic screen lock ring with a new metal design.
From what I gather this should make the Angus CU as "safe" as the Mighty CU. However if you don't trust plastic at all, and therefore don't trust the Mighty then none of this matters to you. Anyway I will be happy to see the new CU. But for right now the current CU is fine for me. I just got a second one, and before I used it, I soaked it in just boiled water for two 10 minute cycles. The rest of my Angus, being used for 10 days now, is extremely neutral in the taste it adds to flower. I tried out the new CU and couldn't taste any plasticy taste or off-gasing. Also since YLL and Vgoodies are suggesting not to use ISO on the cooling unit right now, I highly recommend a couple soak session in ~212F water.
Also, once again be careful opening the CU for the first time and do it while hot. Dynawax or beeswax on the silicon ring will make it much easier to open close the CU. Also the magnets, which are embedded in the bottom of the CU are VERY strong. After waxing the o-ring, if you put the lock ring in the open position, the bottom of the CU can be pulled just by lifting the CU off the Angus ... after a session, you probably don't even need the tweezers.
