AdeC,
I have had some correspondence with Mr. Tim McMurray WRT to his 'Secret Sauce' lube.
As he will not ship this to the UK, I asked him for a recommended alternative.
He said 30wt motor-cycle fork oil - in his opinion just as good as his 'Secret Sauce'.
I use Silkolene Fork Oil Extra Heavy (SAE30), and it has performed superbly
All my SSP pistols are lubed with this.
Fork oil is seal friendly, and is packed with extreme pressure and anti-wear additives - made for use in SSPs
Have fun & a good Sunday
Best regards
Russ