Line-6 M13 blender question! I still want some wet!?

[Russholland]

Hi, 

I have recently acquired a line 6 M13. It's great and saving me a ton of wedge not buying individual pedals (for the moment). One thing I want to do is blend the OD/Dist/Fuzz signals with my dry signal so i'm getting Boss LS-2 in the next couple of days so i can stick the M13 in a in on the loops and blend. This however causes me an issue with the effects I would want to run fully wet (synth patches/filters etc).

Current signal: Bass > M13 > Laney RB9 (which has a series effect loop)
Best guess proposed loop: Bass > LS-2 (a+b mix setting) >M13 (in one LS-2 loop) > LS-2> Amp

My question: Is there a clever way i could link these 2 units using the M13 effects loop and/or my amp effects loop to isolate the just one(more more) bank of effects to be blended with the rest wet? I want the flexibility but without having to change cables between songs. 

Caveat: I'm new to all this multi effect wizardry, so be gentle.

Thanks for your help

Cheers