T' new Quest STRIKER was first up with an Estes B6-4. Well, blow me down! I would guess t' altitude was around 325 feet at t' parachute ejection.

When I picked it up I noticed a fin had broken off!
I walked t' direction o' where t' waddin' landed and found t' fin along t' way.
I can only assume it was hit with t' nose cone at ejection.
You can see how it broke off at t' plastic reducer. T' instructions tell you t' glue t' fins on with medium CA, it didn't hold!
T' upper strake (balsa glued t' t' tube) held strong!