TriviumMarv

Hey! So I am using the Dunlop DVP4 Volume X Mini Pedal as an expression pedal with my hx Stomp. Everything works fine an the the sweep is 0-100 from heel to toe, except on Wah-Blocks. Just on these blocks the whole sweep 0-100 happens between the heel and toe position in about 10% of the whole way. So just in the middel of the expression pedal in about 10% of the whole way. On Volume Blocks etc it works just normal: 0 heel position to 100 toe position. Does anyone know what to do to fix this issue with the wah blocks?? Thank you! :)