I have a dozen of these and use them hard all summer and when possible in the winter at below zero temps with no issues. I use them in giant scale aircraft like my 30% L4 Cub 127" span - 28lbs 12s 1 & 2P and my 1/3rd scale Spacewalker 12s 1P, my 1/4 scale cubs and Fokker D VII, Sopwith Pup and Spad XIII and and in high performance foamies like the 2.0m T-28 and Tucano without issue. Hot summer days and below zero temps don't seem to bother them. Some are 5 years old with hundreds of flights on them.
