Samsung Galaxy S II :: Gmail Contacts Vs. Phone Contacts List When Texting?

Love the phone - just got a really irritating problem. I've synced my phone with my gmail account - the My Contacts list has my key contact email addresses. Then I have multiple groups within gmail account relating to work emails etc, nearly 500 odd.

On the phone, when I click my 'Contacts' button, initially it showed all my phone number contacts, as well all google email contacts mixed with them. I corrected this by going to 'display options' to select 'display only contacts with phone numbers', so that I didn't have to trawl through random email addresses mixed with my proper phone contacts. Great, sorted.

But, when I go to compose a text message - if it is to one or two specific contacts it is fine...I just type their name and it comes up. If I want to scroll through all my phone contacts to send the same message to multiple contacts, big problem - I press that envelope button in the top right corner next to 'enter recipient', and it takes me to the Contacts list, but here it still shows ALL 600 odd contacts with phone contacts still mixed with google email contacts, which is impossible to scroll through and select multiple people to send a text message to....Does anyone know how to sort this out?!??!