Clutch slave cylinder install

[Xcellr8]

Is there a "trick" to this? With the tranny in the car, I've removed the old slave cylinder and disconnected the hydraulic line. Then, attached the hydraulic line on to the new slave cylinder and tired to position it back into place. It is not going into the tranny far enough for the slave cylinder mounting bolt to be screwed in.

I'm wondering one of two things.
1.) Is the slave cylinder tip in the correct location meeting the clutch release lever?
2.) If so, the slave cylinder must be pushed as that depresses the tip and (I presume) creates hydraulic pressure that makes it difficult to line up bolt with hole.
Should I release pressure by opening up bleeder valve?

A tip or two to make this easier would be appreciated.

Thanks,
Joe
98 Boxster 5 speed.