J.J. Spaun changed his putter and immediately found himself in contention at the Charles Schwab Challenge at Colonial.
The reigning US Open champion believes he's getting lined up just about right three weeks before he tries to defend his first major title.
Spaun surged with four birdies on his front nine before a couple of late bogeys in a two-under 68 that put him at eight under Friday, two shots behind Englishman Jordan Smith and one back of Hideki Matsuyama and three others after 36 holes at Colonial.
Smith took the lead by himself with a 31-foot birdie putt at the par-3 16th, saved par from a bunker on 17 and missed a nine-footer for birdie on 18 to finish at 10 under with a second consecutive 65.
