I have been used to using my own "long line" guitar cable with a head amp moulded into the cable near the guitar plug. As would be expected I found that trimming the load capacitance on my guitar output via a small cap added into the guitar plug was necessary to keep it down at the top end. I've just made myself a new TSR cable and realised that, if we assume the A/B footswitch is straight through for signal then we have a situation where the cable capacitance is now that of two cables added together, that's the guitar -> footswitch and footswitch -> amp. That could be very dull for the standard magnetics at least.
Now I did wonder whether the footswitch may already have a buffer amp added to it in order to get around this problem. Can anyone confirm or deny this? If there is no buffer in the switch unit then how do the rest of you cope with this apart from using 1.5m cables?