It should be a +.
I have the same kind of combo and an equalizer in the loop works fine, so i don´t think the graphic is a necessity.
If that´s your only worry, then go for it.
Is it a simul-class? That´s something you cannot do with a pedal.
Don´t post your whole serial number here..
Hello.
I played this with my mmjp (mic switch middle position), IIc+, boss dd-5, ge-7 and sd-1(which is slightly on).
I don´t know if you´ll like this at all, but it´s a nice Django song.
Mika
http://www.youtube.com/watch?v=4Xme4EyLMR0