Pushes!

[imported_machine]

I have just moved up from 20s to 30s and was told apart from the roll there is very little difference between the 2. the last few weeks i have become very aggressive when there is 5 left and blinds are high, i will push 2 cards higher than 10,suited k any ace any pair,obviously i take note of position an stacks etc,this was working very well at 20s, i know this is my first night at 30s but i am 10 buy ins down alot of 4ths and 5ths not many in money, do the pushes change with such a small increase in limit? maybe just a bad downswing but 10 buy ins down in 3 hours is not good, sorry for going on.

ben