Mini and micro servos will be plenty strong enough for recoil. They are about .5 inches X .75" X .75 " so they are pretty small. With the linear servo adapters I doubt that they will be able to cycle very fast so scale speed of the recoil should be pretty close.<div>The fact that you have the SLU's already helps out greatly as you already have some knowledge of how they operate.</div><div>Like I said , as it was described to me, the SLU should have the ability to do the mod.</div><div>I am looking forward to see how it all works out as I am still trying to decide on the SLU for some projects I have currently.</div><div>One thing I am waiting for is the new sound options that are supposed to be planned, and some user opinions on the SLU. </div>