Since you have light colored hair, your options as far as optical methods are limited. Yes, the Comet would be the best choice. I tried the Aurora and had some success at removing light colored hair, but I eventually needed higher fluences than it could provide. I believe the Comet would be more effective because it uses laser instead of IPL and both the optical and RF fluences are higher than those offered by the Aurora.
Mantaray, another member of this forum, is going to get his first Comet treatment in a few days. Hopefully he will report back on his experience soon.
BTW, I would not expect the Comet to be painless. My experience is that in order to get high enough fluence levels to kill hair follicles, it is going to hurt. I find the pain of lasers and Aurora to be tolerable.
One reason that someone considering laser hair removal shouldn’t wait too long to do it is because a lot of the hair will turn white or gray over time. And the lighter the hair, the harder it is to treat. The Comet, even if successful, probably won’t get all of the hair. But it can get a lot of it in a short period of time. Then you can finish with electrolysis.
I had some white hairs that the lasers could not treat. The Aurora got some of them, but it could not provide enough power to get the majority of them. The Comet should be better at this. I am finishing up with electrolysis and am very happy with the results.
Electrolysis does have its advantages. It works on all hair colors and skin types. But it will take longer and cost more because it treats each hair individually. But it can be used year round, even if you tan. I am type IV and spend a lot of time in my boat. I get very dark in the summer and cannot get laser treatments. But I still can use electrolysis.
You really do need to stay out of the sun while getting laser or IPL treatments. This will help prevent blistering and pigmentation changes. If you want to go to an outdoor pool, you will need to use an SPF30 sunblock.
Get what you can with the Comet, and finish with electrolysis would be my advice. You will be glad you did it. You will be a lot more comfortable in and out of the water, and you will be able to dry off more quickly when you’re done swimming.
Hope this helps.