No, you were fine. Get the 1.45 clinchers back. And stop listening to us.
Any climbing includes an equal amount of descending, so the aero benefits will be there on the
other half of your ride. Tubulars may convey some slight advantage in overall weight and ride quality, but are more of a hassle to deal with on a daily basis. Clinchers are much easier for the average guy to change and maintain.
At the level of wheel weights you're considering, I really don't think a couple hundred grams is going to matter in your climbing experience much at all.