[Dual 12v 25mm Fans on Original Ultimaker won't run at less than 100%]

Hi!

I've recently upgraded my Original Ultimaker (bought in 2012) with this dual-fan mod from NeatherBot:

http://www.thingiverse.com/thing:344113

Everything went great, except I can't seem to run the fans at anything less than 240/255. At full speed, it seems a little excessive and is quite noisy.

I'm running the latest Marlin firmware, and the latest version of CURA. I've tested the fan speeds by just manually sending commands through CURA.

These are the fans:

http://www.ebay.com/itm/251483200834?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Any help would be greatly appreciated.

[Support structure options]

I'm having an issue where selecting outline and support at the same time causes it to try to print a raft under the model. The only way to get support to work properly is to do it without the outline as well.

[Support structure options]

Is there any way to still print an outline, but not have this raft issue?