Bradley became one way player to win a major title with a long putter at last month's PGA Championship in Atlanta and Mickelson thought although give it a test at the TPC Boston on Sunday.
'I just reached it (the putter) Monday,' four-times major winner Mickelson told reporters while preparing for Friday's opening cross.
'Last week Did not have any idea about the idiosyncrasies of it, and I played with Keegan Bradley and I asked him a ton of questions.
'It's awkward to me, but a lot of guys have had success with it that I thought I'd give it a try,' added Mickelson, who may be a mentor to Bradley this years.
Other than Bradley, Australian Adam Scott and American Webb Simpson have won PGA Tour events recently with long scotty cameron putters.
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They currently employ quiet popular at discount golf teams.
Their success has helped persuade some players to abandon getaway short putter and exchange signal of the longer version which has been viewed suspiciously by many people in solutions.
After when using the belly putter on Thursday, Mickelson said he was seriously considering leaving the club of his bag for Friday's first round.
'Probably, yeah, probably,' the 41-year-old special. 'I was just a little shady destinations on the leading nine today but a little bit better with it on your back.
'I don't mind trying new things. I've hit two drivers no drivers in (US) Opens, and Do not mind trying something other. We'll see.'
Mickelson lengthy been been thought of as one of the best short-game exponents on tour but he has struggled within the greens this year, ranking 89th in PGA Tour's total putting charts and 84th from inside 10 the feet.
Scott, who won last month's WGC-Bridgestone Invitational at Firestone Country Club along with a long putter, seems so you can get officially started a trends.
'I heard a rumour this morning that he had a long putter, nevertheless i haven't seen it,' the Australian said of Mickelson's strategy on the greens for your pro-am.
'I would get to visualize it to believe it. That's there isn't a. It's the fad in the moment, why not?'