ebsteve wrote:So from what I read here, and on Synesso's site, it appears that while you can pre-infuse while running shots on one of the other groups, it is not able/recommended to pull shots simultaneously - is this correct?
On any Synesso you can pull shots simultaneously on multiple groups at once. The multiple pumps allows you to use the line pressure preinfusion setting while pulling shots on other groups. This may be an issue for some shops, but most people with Synessos I know don't end up using the preinfusion much anyway.
Of course, with multiple pumps you can set different groups to different pressures if you like as well.