Test drove an open station LX3310 the other day. Noticed that the HST had an annoyingly loud whine in high that was less annoying in medium, and barely noticeable in low. I asked the dealer about this specifically and he attributed the loud whine to the fact that the engine was so much quieter compared to other tractors. Basically saying that the engine being so quiet was the only reason the HST seemed so loud. This was at the very end of my test run so didn't have a chance to specifically listen for that. I didn't think too much more of it at the time, but got to wondering afterwards if he was just blowing smoke, or if that really is the case. I wish I was able to test that out...but I'm not. Thoughts?