“Five birdies in the last few holes is very good, and the last two holes were only from a couple of inches,” he said.
“I’ve played very good in some tournaments but I’ve had some problems with my putter. With some good work it’s better, today I putted very well and I’m very happy.”
Waring, who enjoyed the first top-five finish of his European Tour career at the Open de España in April, was six under par for his first 13 holes before driving into water on the 14th and having to hole a five foot putt to salvage a bogey.
The 28 year old, playing on a medical exemption after an operation on a serious wrist injury, bounced back with a birdie from close range on the next but then three-putted the 16th.
"I'm very happy," he said. "I finished a little bit poorly but I played awful the last few weeks to be honest so it's nice to feel I have got my swing back where it needs to be.
"I did a lot of work after missing the cut in Sweden and because I know the course here I even had Tuesday at home practising before flying out.
"The wrist is absolutely fine now - nothing to worry about, which is nice. I can go and play golf and practise as much as I want and we are starting to see some results out of it."
Macaulay finished with three birdies in his last four holes to join Waring on ten under par having previously made just one cut this term since coming through Qualifying School, and admitted his good form had come out of the blue.
“It’s unchartered waters for the last two or three years, and if I’m being honest it’s come out of nowhere,” he said. “I’ve had a really poor start to the season and I’ve worked exceptionally hard to improve, but things haven’t been going my way.
“I did a lot of work last weekend in Sweden with Scott Arnold, who also missed the cut, and he made a couple of suggestions. It was very simple – I was delofting my irons on the way back and not getting any height. It’s taken a lot of repetition and it still feels a little bit funny, but I just need to keep hitting balls and get more comfortable.
“This sport can change in a heartbeat and you have to keep plodding along hoping things will turn. This is a big step in the right direction.
“I’ve got my brother caddying for me this week and he’s always pretty cool no matter what. It’ll be new for me playing in the last few groups in a European Tour event, but that’s why we play the game. We want to get better every week.”
Home favourite and defending champion Bernd Wiesberger, needing a top-12 finish to have any chance of climbing into the top 60 of the Official World Golf Ranking and qualifying for next week’s US Open Championship, has work to over the weekend after a one under par 71 left him five under and tied for 17th.