Congratz on the new car! The second gear resistance is a common issue with this car. Once you know its there you adjust the shift for it.
PS: change the oil i drop mine every 5000kms
2016-F82 M4 MW DCT
2013-F10 M5 B&O AMS DP DCT (GONE)
2014-F32 435xi AW 6SP (SOLD)
2006-E90 325i winter ride