Tonekeeper

Newbie here. 😊 For owners who have added the lower manual to the Mojo 61, do you find the action to be noticeably heavier than the upper? Fwiw, a couple of years back i had a Hammond SK-2 and the amount of effort to depress the keys was more than i wanted. Also, on the Amp Simulator, can someone explain how the sound of the organ changes when you go from Fender Twin to Vox AC30 and if there are any limitations on usage?