You have several options.

* Pay the dev fee and use it at 100%
* Use a miner without devfee
* Use the commandline switch to disable the devfee and lose some % optimization
* Use a little transparent proxy to change the devfee destination to your own addresses.

I'll probably get a shitstorm for this, but I use option 4.
2% (or more) is just overkill. One-time fee, sure, but a constant 2%?! Hell no.

cK'