Use a wooden mallet or a soft hammer when hitting the C spanners.
If they are properly seized the C spanner will just bend after a good few hits.
The C spanners I got with my KTEC coilovers are pretty solid, it would take a LOT more than a few hits with a hammer to bend them.
Fair enough mate. Haven't done this on my K-Tec ones but it happened on my AVO ones a few years ago.