I have an MD Golf Hybrid 18 deg instead of 5 wood/2 iron and Nickent 20/23 deg to replace my 3/4 irons. However i rarely carry the 20 deg and get by carrying 12 clubs. I'm sure if i thought about it i could probably carry fewer.

I find the hybrids very easy to hit compared to the irons. I can't envisage changing back.