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Johan ter Horst has left Maidstone for Folkestone but could be back at the Gallagher again one day.
Stones boss Jay Saunders remains a fan and is convinced the striker will fulfil the potential that saw him snapped up by Hull as a teenager.
He'll be monitoring the 22-year-old who marked his Invicta return by scoring twice in their 3-2 Bostik Premier defeat at Worthing on Saturday.
Saunders said: "He's got everything, he just needs to get used to the physical side of it and he'll get that playing at Folkestone again.
"I will certainly be keeping an eye on him because I think he will kick on and go again.
"I said to him, 'Listen, you need to go and play, get a year's worth of that football.'
"He had a year's worth of men's football at Folkestone and then he went to under-23s football and played kids' football for two years at Hull and you can just see, the physical side of it I think he found a bit hard at this level.
"He's got everything else and he'll only get stronger so he's someone we'll definitely keep an eye on."
Ter Horst joined Maidstone following his release by Hull last summer, scoring twice in 18 National League appearances after recovering from shoulder surgery.
He also had a loan spell at Folkestone before Christmas, scoring five goals in as many games.
The popular striker, nicknamed 'John' by Stones team-mates, felt chances would be limited following the loan signings of Ross Lafayette and Blair Turgott.
Saunders said: "He's a great lad and he deserves to be playing football and that's what he wanted.
"We had a chat and he saw Ross and Blair coming in and I just think he felt that would probably be the end of his chances.
"I think also he's best in a 4-4-2 and we're obviously not playing that, so it's hard for him.
"I don't think you get the best out of him out wide."