Review on Mark Tech Rechargeable Laser Putter Training by Juan Wilson

Have been using it for a few weeks now and love it! Literally the first swipe I took with it told me exactly what my problem has been lately (plowing in the face). I'm not sure how helpful this would be for people who have a "swing door" or open/close movement, but if you have a straight back, a straight movement is a must. Positive: - Clamps directly. I have a hammer that I couldn't use to drive it directly to my face, but that's not a problem. The kit that came with it has an adapter that allows me to use it on the back of the stick, which works great. - You can use this to practice on the stick, so it's not just an alignment guide, it tells you where the clubface is pointing during the shot - The two prongs that connect it to the clubface frame the sweet spot, so if you're hitting the sweet miss point, this will let you know and the ball will go sideways. Not really a goal, but a nice added benefit. I've been using it daily for a few weeks and haven't charged it yet, so the battery life seems good. I have 4 or 5 racquets (all hammers) and only one will fit. One with medium wave, so it doesn't fit. One of them is the Odyssey Backstryke, where the shaft goes in the middle of the back of the head and doesn't fit. I have an Odyssey 3 ball with a huge head. It didn't fit. I have an unnamed hammer where the hostel enters the head too far from the heel and I couldn't get the laser to line up with the center of the face, it was a bit closer to the toe. You can't see the top of the stick, so it's not like aligning the stick using the alignment marks on the stick itself. They use a laser. Unknown: I haven't used it outdoors so can't comment on use in direct sunlight. I will say that it's quite bright so you can use it outside when it's cloudy.