I think the Schatz is a ridiculous creature, if you want to trade a short-end contract outright then you are far better going for Euribor. Bund is an absolute animal at times, I have a real love-hate thing going on with it. I know a lot of guys who do very well trading the Bobl.
I have to say that I find intraday spread trading to be pointless (no offence), if your going to trade, just trade, if you can't handle the risk then guess what? trading isn't for you. Just my opinion, mind.
Here's a free money trade for you in the Bund that some of you may not know. When the Bund opens outside of the previous days value area and then goes into this value area and prints two sets of TPOs, (for example the A's of the market profile probe into the value area and then the B's print there as well), it will almost always go right through the value area. You'll need a bigger stop to allow for a little room but it will do it. This works equally well for the T-Note too. The other day they both double printed at the same time (which is an absolute cert) and I sold 62 in the bund, getting out at 40, and did the same in the T-Note 13.5 exited at 6.5. Not bragging, just showing that it does work.