Jonbon took the step up in trip in his side as he roared back to his best with a brave success in the My Pension Expert Melling Chase at Aintree.
Nicky Henderson's eight-year-old has been campaigned solely at two miles so far over fences and won both the Shloer Chase and Tingle Creek in the early stages of this campaign.
However, a narrow reverse in the rearranged Clarence House was followed by missing the Champion Chase at the Cheltenham Festival as Henderson effectively shut down his operation on account of the poor stable form.
Trying two and a half miles for the first time, Jonbon (11-10 favourite) travelled supremely in the hands of Nico de Boinville, with Jack Kennedy keen to make this a stiff stamina test sending Conflated to the lead where he was closely shadowed by Pic D'Orhy and Minella Drama.
Jonbon and Protektorat were always hot on that trio's tail and as Kennedy continued to pour on the coal aboard Conflated down towards two out, Jonbon loomed menacingly with Protektorat staying on strongly.
Nico de Boinville edged Jonbon to a narrow advantage jumping the last and the Seven Barrows star pulled out all the stops as he kept on right to the line to hold off the game Conflated, with Protektorat back in third after a thrilling conclusion to the Grade One event.
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Nicky Henderson
Jack Kennedy