Have you installed a headlight modulator (and with or w/o solid state relay)?

[Jim21680_imp]

Not a huge fan of these things, and you shouldn't let them give you a false sense of security.
That is, your level of riding caution should be the same whether you have a modulator or not.

Plus, I've heard of too many instances where drivers mistake this modulation for the rider "flashing" them to go ahead or pull out.
Just my opinion, but I think they're more annoying to other drivers than anything you'll gain in safety (which is minimal, if anything).