I tried the Keeley TS9 and the DS1 at G77 just now, with a US ann. strat.
the DS1 was rich full, yet articulate and cuts tru very well. very punchy. and the character of the single coils came through even under high gain. WAYYYYY betterer than my original Japanese DS1.. and i'm not kidding!
the Keeley TS9 had lots more gain than stock, and doesnt have the unpleasant high mid spike of the stock TS9. The tone knob has much more range. It's more complex sounding and richer, that's how i can describe it.