Yes. Having some time to refine the idea over time really (really!) helps — i.e. coming up with the initial lead generator complete plan during our bootcamp using our workbook, then refining it together with team members and with our input, then building it and testing it out in the real world with a small ad campaign for initial results, and refining + optimizing based on the results [rinse and repeat]. Also, we don't know when we'll be offering this particular bootcamp again, and right now it's with "muddy boots" pricing (i.e. it's our new company's first bootcamp but draws on our many years of experience), so we'd recommend doing this one now even if you plan to do some or most of the actual creation and implementation later.
Then by the time frame you're ready to have it working well, your lead generator will be ready to be truly effective. It's rarely the first iteration of a quiz or other type of lead generator that's your final super performer, though they can do really well from the start. With our own quiz, we've gone through 3 iterations to get to one that work really well with our full marketing flow.