Advantages to the Romans shields?
62 degree discharge air is way too high for a discharge temp. You should be somewhere in the low 50's. With the issue at hand you more than likely have a leak somewhere. Possible the TXV may be the issue. But I suspect more of a leak somewhere Your probably low about 1 lb
You can't make a katana with a saw and a metal file. The best you could make would be a ghetto machete.
It can take upto 10 skilled craftsmen using forges, hammers and specialised grinding machines several months to forge a samurai blade, if you want to try on your own with a metal file and saw then please do try.
