I'm pretty sure the Oval one is around the same height as the Cobb one which I love. But I don't want grab it from the side like I imagine you grab the Oval one. I know the round one is higher than the stock so but hopefully it's not too much shorter than Cobbs and your oval one.
UPDATE: Just received my round weighted knob and it's amazing! I took off my Cobb knob and put Boomba's on and the difference is incredible. Shifting is so easy with it. The weight, shape, and feel are all great. I would highly recommend this as your knob upgrade. Great product Boomba. Can't wait to install your other shifting mods!