strange blaze

Splash duking it out with a KIT mutation?

I've seen LP cause something similar. Any chance the horse has LP?

Likely some form of suppression allele causing the spots. It's similar to suppression alleles causing distal spots on leg markings.

the owner says there is no chance of appy as far as she knows

I'd go with what Threnody said then.

We have a horse like this and his legs are covered too, he is tobiano (single copy) - must get some photos

yes do ..Id love to see him

Yes, but Tobiano did not put that blaze there- it could be trying to suppress it, of course....

Im assuming that splash put the blaze there

I forgot what LP is :-? and it is not in the dictionary.

Leopard Complex