Hi! I just want to throw a question to everybody. :)
While using the amp sims, I tried using my HD500x with external drive pedals (infront and via Send/Return) and it doesn't "feel" the same when using the internal drive pedals. I mean yes the sound I get is different but there is a difference. I am not sure if it is the attack, or the reactiveness. If I try to describe it seems there is a VERY small latency when using external drive effects. I don't feel this latency while playing, but when I do an A-B comparison, it's there. Another description could be is that the internal drive effects are more responsive. Am I making any sense? The external drive pedals I tried were Catalinbread DLS, MI Audio SCB, Wampler Sovereign, EHX Soul food.
Anyway I have set aside all my stomp boxes for months already and used my unit by itself, but am considering purchasing a new drive pedal. If I can get some clarity on my situation above then I can decide if I should proceed with the purchase. :)