Will I have problems entering Thailand on a 30-day entry without a visa?

I have quite a few tourist visas in my passport, but I've been back to Canada in between. Most recently I came over with the multiple entry visa, and last I went to Laos for a new single entry. I am thinking to do a run to Ranong to get a 30 day entry, as I plan to leave the country to travel a bit at the end of those 30 days. But is it likely I will have problems without a visa? I have no 30 day entries this year, and can easily show a flight ticket and 20,000 baht.