We're mounting to replica guns that have a fairly strong recoil when fired. We originally had them fixed directly to the weapons, but since moving over to 2018 Trackers, this is no longer a viable option. We've tried using foam bushes to reduce the shock, which has helped, but it's still not very good. We're looking at more mounting options, but ideally, we want the trackers mounted as cleanly as possible to the weapons, so we don't really want any large or bulky solutions. Using the foam bushes may be ok, if the 2018 Trackers performed as well as the older ones, hence hoping that HTC sort this problem out.