Hey Sweetbeats - you actually answered this about 1.5 years ago in a thread:
The info starts on post #130 here:
MS-16 story
Electrolytic caps C30 and C32 on the rec/play amp card handle the switching delay, and, again, the purpose of the delay is to abate switching noise. The stock value is 4.7uF for these caps. evm1024 removed them entirely and replaced them with staple jumpers on his amp cards since punches weren't important to him, but crisp and quick switching was. I personally am going to try 2.2uF...hopefully still manage switching noise but offer quicker switching operation. Other standard values that could be tried are 1uF and 3.3uF.