help me out with fowarding emails...

i have 4 email accounts + my bis account. I would like to receive ALL the emails instantly. 3 of the accounts are Gmail related (google apps) accounts.

previously, each email address was associated with BIS, all of which are IMAP accounts, and basically sync correctly, however i receive emails nearly 100% of the time 15 minutes later. I need to retain the ability to send the emails out via the individual email addresses.

i switched it to the following, and i want to see if anyone else has the same experience.

Each address is still associated with BIS, but under FILTERS, all accounts are set to "When Filters do not apply: DO NOT FOWARD MESSGE"

AND, Each account is set in their respective accounts are set to foward directly to my BIS account, which causes me to receive them instantly.