New knobs and pots for my XP-720K

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I am building the Elenco XP-720k and based on much feedback here and elsewhere I have replaced the pots and knobs:

The stock pots are very cheap and stiff.  The stock knobs are just plastic lightweight.  The new equipment is nice and machined:

Knobs: Kilo International OESL-75-4-5
http://www.digikey.com/product-search/en?x=0&y=0&lang=en&site=us&keywords=226-4114-ND

Pots: Bourns 3590S-2-202L
http://www.digikey.com/product-search/en?KeyWords=3590S-2-202L-ND&WT.z_header=search_go