Deciding between Electrode Holders

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stovepower
stovepower's picture
Deciding between Electrode Holders

 My electrode holder for the CV-4 Axon Headstage is full of leaks and is making it difficult to patch-clamp. Can you help me decide between the following holders?

This is my current source of holders, but they tend to crack or deform easily eventually leading to leaks.
https://www.warneronline.com/product_info.cfm?id=987&name=Q%20Series%20Holders%20for%20Axon

This is supposedly a newly designed type of holder but I don't think they produce holders for CV-4.
http://www.g23instruments.com/shop/category_4/Microelectrode-holders---ISO-Range.html?sessid=3Jpn0x0Msi2s6NXLtDZXRwHteeysOR4M9QIwVhQIhz46i7MRn5Inht0CtK9TPAL0&shop_param=cid%3D%26

I am keen on buying these guys, but I worry this isn't appropraite for patch-clamping neurons.
http://www.siskiyou.com/stable-tip-electrode-holder.shtml

Thank you for your help.