I sanded the bottom down to the barrier coat, applied Interprotect 2000 down one side and up the other. Then within 15-20 minutes of completing that, I started my application of SR-60. Three coats SR-60 in all.
The boat has been in the water for over 18 months now and still looks great with no hard growth(Carrabelle, FL). After the first year, I found that I need to wipe off the slime using a microfiber glove. I have wiped it down a few times now, and I am hoping to get another 12-18 months at least before another application of SR-60.
Here is the link to the Dollar General microfiber glove I use:
DG Auto Microfiber Car Wash Mitt - Auto Cleaning - Dollar General