William Hepburns Forecasts i find are inaccurate for my region in southeastern ontario and change drastically every day with the weather forecast.. i realise its not an exact science.. i simply look at the APRS map which doesnt forecast,, but it tells you what the conditions are like. which is helpful
with the vhfdx.com sherlock site i find not enough people put spots out for any band above 50 MHZ.. this site is helpful when theres conditions in the low band, but not really good for bands over 50MHZ except for overseas in europe