Makes perfect sense, that's how I did things before I had the HX stomp XL (two guitars going into a boss line selector followed by the a chain of fx, even with a 10-band GEQ on the jazz guitar before the line selector to tame some of the low end) . But I wanted to downsize my gigging rig, so re-introducing those pedals is a bit of a step backwards for me. That, and my lazy brain has already gotten used to having the "guitar switch" automatically incorporated in my presets :)
Anyway, thanks for confirming my suspicion, it's a very minor annoyance anyway as I only ran into 'block shortage' once or twice during the last few months, when I was really testing the limits of the stomp. But I still think having an input selection as an option outside the 'block' choice wouldn't be too stupid a thing. Now where do I file this feature request? :)
So yeah, thanks. Peace!