After working with landing pages for quite some time, these types of numbers don't mean much to me anymore.  Sure, 190% increase in conversion rate is impressive; however, I would argue that posts like this ignore some other major factors such as conversion rates along the funnel.<p>I'd argue that there is an inverse relationship between the conversion rate of this form and the conversion rate to the next step in your funnel.  I'm not saying that either way is better, I'm just arguing that it deserves deeper analysis.