I need a quality pedal to push my amps over the edge and I've been trying to choose between these two. On the one hand the transparent harmonic richness and added volume of the Katana sounds really good. On the other hand that Voxy sort of treble boost tone sounds great too. I also like the idea of the original Mullard chips (I am, admittedly a sucker for things like that). However, buying two boosts seems excessive, especially at Keeley UK's ridiculous mark up. Just wondering if anyone has any experiences with these pedals?