Very new to moutain biking. I bought a Cannondale Jekyll 800 a few weeks ago and I'm having a blast. Found a sweet, 6 mile single track about 20 minutes from my house. It has a number of built up logs crossing the path. Some of the smaller ones I roll right over, but I usually stop to "walk" over the bigger ones.
What's the correct technique to tackle these bigger ones? How fast should I take it, and should I lift/hop any part of the bike when taking them? I managed to scrape my chainring on one of them, so that has also made me hesitant with the bigger ones.
Second, how about the little 2x4 planks of wood crossing over deep puddles? I found these at another "track" and lost my balance... but it was very wet that day, and wet wood is pretty slick. Any balancing techniques?