Hey Frosty thanx for your question!
I have had some comments made by tri-geeks about my time trial bike with drops/clip ons, but they are all transparent, mostly about aerodynamics and weight.
Being comfortable on your bike, is much more important. Especially if your gonna jump in some sunday group rides or be climbing/descending some serious hills.
Here are two best clip on bars I have used, and both former or current TBB sponsors:http://www.thenew3t.com/details.aspx?i=road&t=&p=clipon&d=TEAMhttp://www.hedcycling.com/aerobars/clip_lite.asp
The key to these clip ons, is that you can flap up the the bar pads horizontally,
for when your going up up up or just ridding easy, and have your hands close to your stem!