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House exterior

Exterior of house was 1970s swirls. Have ground down ridges of whole house but can still see swirl/repetitive pattern through new coat of paint (see photo of test patch). Had a quote to replaster but too expensive and is overcapitalising on house value. Not too fussy and need a solution - skim coat? spray on? stones? thick paint? Would appreciate any advice/quotes. Keen to get it done asap.