tried the cap modification, but it's too subtle, I think I'll try the wampler one or maybe part of it
MOD DETAILS:
R57 - change to 3k3
R44 and R62 - change to 1k
C28 - change to 10nf capacitor AND 1k resistor in parallel
D8 - change to 1N4001
D9 - change to 1N4001 AND 1N34A in series
D11 -...