SES mails warm up

Hi we are trying to move our mails from another provider to SES, we switched to it only 1 type of emails, using dedicated ip with auto warm up, and its says its 100% warmed up. Question if we can move rest of our mails and just send them, in case if current volume like 400 mails during day, and when we move rest it will be 200 000, or we should do it slowly and like send only some percentage of mails via SES and keep increasing that every day, to avoid our messages been marked as spam, who have experience ?