I have a HV85 in my Intergral and a HV110 in my Impact but I need to connect to my computer to see which version I have in each. Other than the 110 failing on its Inital takeoff run (replaced by CC). and the 85 almost burning up sitting still (replaced by CC). I haven't had any recurring problems once the units survived the inital flight. Apparently there were some problems in a few runs of the product. Castle has been great to deal with. I did have a ticking sound at full throttle that was due to the data log portion but when I changed the sample rate it went away. Always more to learn than just the sequence.