Thanks for your quick responses.
Here's a bit more info based on your response Rick:
1. First mailing - it takes several to the same person to build your brand and therefore increase your response rate. Good Point... I'll try another round after the first of the year.
2. Timing - Advertising is up substantially this time of year. I think it's difficult to stand out and a get a response now. However, another note in Jan/Feb may be perfectly timed. You're right, maybe if they see another correspondence from me after the New Year, they will recognize it
3. Copy/message - I assume you have 'proven' copy. I used a brief template from Yellow Letters. On my next letter, I plan on sending one with a bit more info on it.
4. Audience - I bet people with 45% equity get half as many yellow letters. Good point!
5. Did you text the hang ups? No, but I will do that now.
6. Measurement: The real and only measure of the campaign is deals. You have to look at it as a multi-mailer campaign to buy houses. Response/Calls is somewhat correlated, but not the measure of success. I am noticing the people that have called so far do not want to sell for less and are not motivated sellers at all... in fact, they think their houses are worth more than retail value!
I am also a real estate agent, so I figure this campaign is 2x as effective for me, since even if they aren't a wholesale candidate, perhaps I can at least get a listing out of it.