Prolights fresnels (and mini fresnels) and colorsource 20 bad dimmer curve

Hi all,

I have a colorsource 20 and couple of Prolights Fresnels (JTW) and mini Fresnels. The big problem I have is that it is not possible to get a really low light intensity when I send 1% to the fixture. Also when I send 1% to the fine dimmer (channel 2) the light pops on pretty bright (It is in a small theater so low to the ground). I have tried change the dimmer curve on the fixture, but to get a real low light intensity it is not possilbe.

Any suggestions?

Thanks in advance,