Looks like fun - makes me wish it was not cold and windy here for the next 4 or 5 months
5.5x3 is a bit too much prop, try to finds a 5x3. And MA are sort of "heavy", try an APC.
We used to like Cox black nylon 5x3 on the TD, usually survived crashes. The Grey ones were too brittle.
These might be the same ones, even though they say "Grey" they look like the flexible black ones.
What fuel are you running?