Links from Blogarama - should we disavow?

[LarryB]

I recently took over SEO for a website that has approx. 2,000 links from blogarama out of a total of 4,000 (according to SEO Spyglass)
The links from blogarama keep changing and recently they all switched to image links and because they are 50% of all links the percentage of text links dropped from 90% to 50%.
A couple of weeks later the image links were gone and back to text links.
I have no control over these links and rankings are sometimes extremely volatile but client does not want to disavow as they make up 50% of all links to the site.

Question is should we disavow? Could we disavow in stages eg 250 links at a time?

[Shaddows]

Why do you want to disavow?

Disavowing may (or may not) stabilise your ranking- but that would be at the lowest ranking level.

If you are worried about the proportion of A:B, one answer is to reduce A, another is to increase B.

[LarryB]

Thanks Shaddows -
It would take a long time to get this link profile to the point where 2,000 links were a minor part of the total and, therefore, constant changes to those links (outside my control) would have less effect than they seem to now.
The problem is that blogarama keep dropping links (1,000+ at a time, switching them to images with no anchor text and then a month later adding another 1,000+ back). The rest of the link profile is pretty reasonable with a good link:domain ratio.
It doesn't feel goodd to be dependent on half of all links from just one site that seems to constantly pay around with the links - that's why I considered disavowing some or all...

[Shaddows]

The links are currently varying degrees of helpful. Disavowing means they will no longer be at all helpful. Assuming, of course, that disavow is still a functioning mechanism (which it probably isn't)

What is the point of stabilising your ranking at a lower level than currently enjoyed? Stability is surely a secondary concern, well behind ranking highly, even if intermittently.

[LarryB]

The underlying problem is, of course, that rankings are falling significantly and rising again unpredictably. This is a high volume site so falls by even 5-10 places have a major impact on visits and income.