lava lash for pure phys+added fire damage build?

Hello

I'm almost out of damage nodes that are close enough to be worthwhile, should I take lava lash or 8% mace damage? Is lava lash at all worth it?

My heavy strike does 560-1160 fire and 1601-3315 physical at 1.6 aps.
My leap slam does 374-774 and 1067-2210 @0.98 aps

Build:


http://www.pathofexile.com/passive-skill-tree/AAAAAgEABLMFLQ48D8wS4RQgFE0UUhRxGS4aOCECIVUn7Si1KvYt0jIJOQ46UjrYQT9HflBHUFBR5lRJVbVWBFhjWfNfP2BLYIhhIWFSZU1yqXTteu97jHy7fNmDOITZhO-GYIdqjM-QVZBsns2fy6IAouqmZKcwp4SpaKmUrKq0L7ndwBrBBMWKxtjJmNSP3D3ewd-_5K3nUuw47w7vTu988B_yL_Pd9kj3vg==

any opinions appreciated ty ;)

no one has any opinions on 30% fire damage vs 8% physical?

I am making my marauder today, going to use ground slam + added melee dmg + added fire dmg + faster attacks and I plan on getting lava lash to add 30% dmg to my added fire dmg gem, seems like a good idea I think, not sure how it calculates out though.