# Going large: advice/resources for optimising

**URL:** <https://discourse.mcneel.com/t/going-large-advice-resources-for-optimising/86202>\
**Category:** Grasshopper\
**Created:** [July 15, 2019, 12:21pm UTC](https://discourse.mcneel.com/t/going-large-advice-resources-for-optimising/86202 "2019-07-15T12:21:24Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Joseph\_Oster](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/joseph_oster/32/549124_2.png) [@Joseph\_Oster](https://discourse.mcneel.com/u/Joseph_Oster)\
**Post date:** [July 20, 2019, 5:42pm UTC](https://discourse.mcneel.com/t/going-large-advice-resources-for-optimising/86202/7 "2019-07-20T17:42:43Z")

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Good observation about data dams passing data when you first open a GH file ( **fail!** ), but you don’t need Python since Stream Gate does the same thing _(and more)_:

> [@Data dam toggle/trigger](https://discourse.mcneel.com/t/data-dam-toggle-trigger/83158/5):
>
> Yes, it would be nice to have a ‘trigger’ input for Data Dam. But I don’t agree that either of the proposals in the thread you refer to are a solution. The one in testDataDam.gh using VB Script appears to trigger all data dams? The one using Metahopper appears to be more selective using its “Get objects in group” feature but it’s a little obscure. The connection is only “explicit” in the sense that Data Dam and ObjFromGroup (and only those two components?) must be in the same group, a condit…

![data_dam_2019Jul20a](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/0/b/0b4307049a1d9d2d44c48dab53754a6a57b1c8b4.png)  
[data\_dam\_2019Jul20a.gh](https://discourse.mcneel.com/uploads/short-url/ngQbtgLbYZgoEaGJvB71s0imN4w.gh) (7.4 KB)

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