Leon Cameron will prune Toby Greene's fly-kick marking technique without tearing legal aspects of the controversial action apart.
The GWS coach will train the forward to abandon using two actions with his leg to push off opponents after the AFL ruled an incident with Sydney defender Nic Newman should have been deemed a free kick under the current guidelines.
But Cameron has no objection to the 24-year-old continuing to employ the legal one-motion studs-up marking technique - used to buffet the Swans' Aliir Aliir - during the Giants' semi-final clash against Collingwood on Saturday night.
"If (the Newman incident is) a clear free kick then ... I clearly don't want Toby giving away free kicks and giving Collingwood the football back," Cameron told SEN.
"We have to work on the double action. But if you noticed a couple of the other incidents, they were obviously all clear."
The AFL mentor acknowledged Greene's unusual technique sits in a "grey area" but insisted it's an almost innate action.
"No doubt when you step up to the plate at AFL level you're going to get scrutinised on it," Cameron said.
"When the rules are set in place, there's players that can obviously push those limits.
"I don't want him to lose what he's very, very good at.
"But I also understand and Toby understands there's a fair bit of grey in this as well."
Cameron, who denied the AFL umpires department had made any contact with him to warn Greene against using the technique this week, would understand if officials moved to outlaw the act with a potential studs-up rule.
"At the end of the year if the AFL look at that then no doubt then we have an entire summer period to continue to work on techniques if Toby needs to change," he said.