Trying to Scan a SimulScan Readable Form and finding that the image is captured before you are ready? Change the Auto Capture Sensitivity - I find 5 for larger forms to work the best- but you can play around with the sensitivity until it matches your teams or individual needs.
-> under Edit--> Template Settings--> Auto Capture Sensitivity. Set the Sensitivity of the auto capture based on a scale of 1-10; where 10 is the highest.
This is only valid if Auto Image Capture is Selected.
This can be changed in either template builder or at the Device Level.
Still Feel like you need more time? Turn Auto Image Capture off and allow the user to snap the image when ready.