[Overboard]

Coils make no difference to ur shocks bottoming out mate, full up travell is full up travell no matter what spring you've got squashed between the diff and chassis

+1

It doesn't matter how high your springs are, if your shocks are 5" longer than stock and you hit a big bump that compresses the suspension all the way to the stock bump stops, the shocks will run out of travel before the bump stops absorb the crunch. It's not a problem if you never bottom your suspension but will destroy your shocks and probably their mounts if your suspension ever bottoms out. One thing some manufacturers do that helps a lot is to provide a bottoming rubber on the shock shaft to stop metal to metal impact. These integral bottoming rubbers seem to range from good to bad but a lot of shocks don't have them at all. They still put a lot of load on the shock mount and can cause damage to it.

Cheers,