New to HeavyCoin.... long time Scrypt/ScryptN/Momemtum miner though....

Big THANKS to 1GH for the effort in the cgminer-3.7.3-heavy and updating it so fast.
I decided to switch from ScryptN last night to give Heavy a shot. It's a VERY different
world tuning cgminer-heavy than other PoWs. Things I'm personally seeing :

1) memory clock doesn't seem to matter... at least that I can see as I'm mining and the cards report back 150Mhz
2) gpu clock is *very* touchy in relation to intensity. As for xintensity, i find that even more touchy.
3) extremely low power consumption while mining. impressive and yet I don't see the CPU doing much work either.

I'm running Ubuntu 13.04 and I use the GIT repository and compile my own binary for mining.
I'm using MSI R9 290 Gaming cards and although I *THINK* I've find a nice sweet hash rate,
I'd like to ask the community what other R9 290's have been getting. I'm currently getting 24Mh/s
on each of my cards at gpu 977Mhz, mem 150Mhz, I=12, T=1. Using W=64 as per suggested by 1GH.
I all feels to surreal if I'm running near peak for my rig since I'm using to tweaking higher clocks, memory,
and high I/XI. Many thanks in advance for advice and comparisons!!