Search for soldier's wills online

[Ann from Sussex]

https://www.probatesearch.service.gov.uk/

Saw this mentioned in my paper this morning. I've had a look for my gt uncle who died in France in 1918. Found someone of the same name (which isn't a particularly common one) but the date of death is a month out from the one I have (which came from the CWGC) and I don't know his regimental number to cross check with. Do I risk £6 on the chance it is him, or not....?