ZBrushCentral

How to reduce size of ztl files?

Hello!

Is there a way to make ztl files not so big in size?
Sometimes I use winrar just to reduce them a little bit.

Is there any trick to make them less big?

Sorry for my English.
Bye.

save at lowest SubD level. Don’t use as many layers, Remove masks before saving.

Thank you for the reply.
The “low subdivision level” trick dowsn’t seems to work!
I load a tool (with subtools) saved to the highest level (133mb).
I click the “all low” button to lower all the subdivision levels of all the subtool and I save the new tool. It’s 133Mb! Exactly like the first one!

Another strange thing is that this tool (a character I sculpt) was 75mb. But one day it became 133mb…and I didn’t add new subdivision levels, no polypainting, nothing…I have no idea why it became double the size without reason.

Could it be that there are textures-displacement-normal maps hidden in the ztl file?
Maybe there are maps and I don’t know hot to remove them because I cannot see them (in the alpha-textures panels there aren’t).