in case anyone wants to know what touchOSC is like:

for those trying to use MIDI-OX i hooked up my ipad/touchosc to the midi interface on my machine and here is what is sent to the amp when i press some buttons:

first i'm going to show the topo selection (CHANNEL A):

I

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

000484A6   2  --     B0    7A    00    1  ---  CC: Local Cntrl      

000484F7   2  --     B0    7A    00    1  ---  CC: Local Cntrl      

II

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

0005028E   2  --     B0    7A    01    1  ---  CC: Local Cntrl      

00050311   2  --     B0    7A    01    1  ---  CC: Local Cntrl      

III

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

00054934   2  --     B0    7A    02    1  ---  CC: Local Cntrl      

00054985   2  --     B0    7A    02    1  ---  CC: Local Cntrl      

IV

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

0005A130   2  --     B0    7A    03    1  ---  CC: Local Cntrl      

0005A182   2  --     B0    7A    03    1  ---  CC: Local Cntrl      

pretty sure if you type B0 7A 00 in the sysex command window and then select send sysex you would select topo I (the rest you can figure from the copy/paste above)

a few example amp selections:

SLO CLEAN (CHANNEL A, CURRENT TOPO)

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

0008784C   2  --     B0    0B    1A    1  ---  CC: Expression       

000878A0   2  --     B0    0B    1A    1  ---  CC: Expression       

SLO CRUNCH

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

00093CBD   2  --     B0    0B    1B    1  ---  CC: Expression       

00093D10   2  --     B0    0B    1B    1  ---  CC: Expression       

SLO OVERDRIVE

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT              

0009981C   2  --     B0    0B    1C    1  ---  CC: Expression       

00099860   2  --     B0    0B    1C    1  ---  CC: Expression

These are the amp defaults...

anyway... if someone tries this and confirms that it works for them, I can do the other amps...

however, once you do this, and correlate it to the numbers shown in the midi guide, I think it will make sense....

or at least i hope so... because i'm far from a midi expert... just trying to help people get started.

just tried the conversion...

1A does indeed equal 26.

0B = 11

i used this page for conversion: http://www.mathsisfun.com/binary-decimal-hexadecimal-converter.html