I found the 2 knob Keely Compressor for 100 bucks, and I'm wondering if it will achieve what I need it to do. Basically, I'm using a high gain amp with an ISP Decimator, but the Decimator cuts off a lot of my sustain in parts where I need it. Just like in the Periphery gear video, I want to use the compressor to counteract the gate so that I can get really tight chugs but have a lot of sustain when I need it. Will the 2 knob work fine? Or should I save up for the 4 knob? By the way my only pedal is the ISP Decimator, and I may add my Boss PQ-4 but it is too noisy at the moment. Thanks in Advance!