A question was asked about a product and all but one person decided to give there opinion if he needed it . I mention this because it has happened to me on here also. I asked a question on something I WANTED and got a bunch of opinions about needing it
I was not trying to be an ass with my response. I was sincere in what I said.
If someone wanted to know where to buy "deer-whistles" I would not provide them a link to buy some without first mentioning they are virtually useless and waste of time and money...
Check around about modulating lights... see what opinions you find out there. You might be surprised at the opinions of some who have, or had them... Not all, but some do not have good opinions/experiences about them.
I'll stick to my opinion they are annoying, and can sometimes confuse drivers as to your intentions... some have even claimed drivers turned toward them because they were looking at the modulating lights; thus drove right toward them.
Some say cars have pulled right out in front of them; apparently mistaking the flashing lights as an indication they were giving the car permission to do so.
Others have said cars suddenly stop or pull-over in front of them thinking they are the police or something... thus causing them to take evasive action to avoid running into them. The list of complaints seems to be fairly long to me.
Again, not all have these complaints, but there are some that do... enough for me to suggest not using them -- or at least suggest someone first check-out opinions of them before spending the money and taking the time to install them.
If your Spyder alone isn't visible enough... wear a "visible vest" of green, yellow or orange. Tests have shown they are quite visible and effective... and more likely not to be confusing. Not to mention they are a lot less expensive...
I hope this helps to clarify my original post. I should have included more about why I stated my opinion.