Derek,
I am hardly in a posistion to analyse the working or opperational differences between the two products, especially having used Solutions for a few days but, on first impressions, there is no perceptable difference in performance when used with HWE.
I have so far used neither with bonnet cleaning but have a large church due for a maintenace clean early in the New Year and intend to alternate the two products and also Prochem Bonnet Buff on segments of the main hall. I shall be doing a deep clean in June and it will be interesting to see if there is any perceptable difference in the soiling rates.
(Not scientific but good enough for my purposes).
Interestingly I have done similar with several brands/types of protector over the years and the general results have not encouraged me to recommend their use.
John.