I just picked up a Yaabaa 749 for a good deal, I found on my local Craigslist. I have always ridden 'old' bikes. (a couple of Monty's: MOD, and a Planet-X: STOCK).
So, I have been riding this Yaabaa for a few days and holy smokes! What a difference! (as compared to the x-Hydra).
The wheelbase is only slightly longer (10mm) than the Monty, but the BB rise is significantly different. I was doing MUCH MUCH better on the rear wheel hopping in a matter of a few minutes... NOW, getting back on the Hydra? I don't think so... LOL.
I did try the Hydra again and "pulling" the front end of the Hydra up is 'hard work' - the Monty feels much heavier too.. Haven't weighed the bikes though.. I'll be spending my practice time on the 'newer' geometry.
I'm hooked on this newer frame geometry... I guess this is what happens when you are 'away' for a while. The bikes have really changed in the geometry 'dept. - not just overall weight.