Behind the jack area under the footplate is a micro taper switch which provides the user two distinct volume swell rates.

Googled that.
Quote by SimplyBen
That's the advantage of being such a distance from Yianni. I can continue to live my life without fear of stumbling upon his dark terror.

Quote by Toppscore
NakedInTheRain aka "Naked with shriveled pencil sized bacon In The Rain"
If yours has the switch, you can replace the switch with a trimmer and lower the resistor down to 1K.
If yours doesn't have the switch or trimmer, you can add a 1K resistor and a trimmer in series. Hook this trimmer/resistor between the in and out jack tips.
Trimmer value should probably be the same value as the volume pedals pot.