Point taken Pete.
I had trouble finding copper strips ( I didn't want to cut strips myself)
And remembered that the NEC calls for anytime you put Aluminum wire into a Copper lug on a power panel, that you put
"No-OX" or some similar anti oxidation paste to prevent corrosion
( this is for the service entrance part)
So, I thought, "Gee, I wonder how long it'll be before a copper strip looses contact with a heatsink...."

It all works for us, or I should say me... because no one rig stays built for long!

No.... not in VT now...
I'm out in the high desert of Ely, Nevada for the past year!
( WAY out in nowhere.... heck, it's a 3 1/2 hour, one way, ride to the nearest Walmart! )
Where the Scorpions are out already... but yet right now... it's snowing .... yup, pretty strange weather here.
( Elevation above sea level is 6,244 feet...... my driveway is 44 feet lower than the summit of Mt Washington.)