Teeny, I can't really see you on your bike - but how high does your seatpost rise above the top tube? If you put a 0 degree or a negative stem on your bike, you can get the handlebar down so that you can get it a more aerodynamic position. Whether that'll qualify as a full racing tuck or not, it'll definitely help with wind resistence!

I tend to like to be more upright and I think my shoulders are wider or my arms aren't really WSD - so I don't really use the narrow or shallow bars a lot of people on here use. (I may really like 'em if I ever try 'em, but I've been fine with that I have)... I use the FSA k-wing carbon handlebars on my bike... the wing part rises up a little bit above the center that the stem area - so if I'm holding on to the wing area I can be fairly upright, then if I reach for the hoods I'm slightly stretched out because those are a bit further down than on normal bars, and then if I get into the drops, I'm fairly bent over.

But I'm not a racer by any means!