Just purchased a STI-R and installed it on my windshield above the RVM. It doesn't have the same ramp up as my STI Driver which has a build date 0609. It's also not as sensitive as the STI right below the roofline above the RVM. My STI-R performs as good as the STI mounted next to the RVM still behind the tint band. Just called BEL and the customer service rep said that there have no firmware updates for the STI-R after 2007. Since my build date is 3508 he(Brian) said that I am all up to date and he can't do anything for me. So I tell him about the forum and which has proof that ramp up and 33.8 issues were updated/resolved in 4208. He started laughing at me and was wondering how a bunch on enthusiasts on the internet would know more than someone who gets paid to work at BEL. He said his boss said no updates which means no updates, FINAL STORY. After asking the rep nicely a few more times for the update I got pissed off and informed him how some members like MEM-TEK and others on the forum actually help improve their products with feedback and suggestions from real world scenarios. He finally put me on hold for about three minutes and told me that the 33.8 is not an issue for my build date and put me on hold again. After a few more minutes he finally said if OK to the update and gave a RMA#. I hope they techs take care of my baby when it gets there and check for all updates. This has been my only bad experience with BEL's customer service so far and just wanted to share it.