I remember the Ilford proscription against pre-soaking - "streaking" was not the concern - Ilford claimed that presoaking caused an unfavorable "swelling" of the emulsion prior to contact with the developer and the end result was a decrease in overall image quality, especially in acutance.

I might be remembering incorrectly (sadly, it does happen at times) but I think I read much the same thing in a report from Agfa, and from one or two of the color chemical manufacturers.

Anyway - I don't prewet/ presoak.