Mike, I have the PRS metric Tonepros on one of my SE soapbars, and they are tight and have a very wide head. I also don't understand why the replacements (from everyone) still have a little forward lean. I sent a message to Tonepros asking why the brass stud inserts weren't the same diameter as the originals, and asking if they intended to make the same diameter in the future. No answer as of yet, & possibly never. I would also tell you to take a look at Hipshot replacement tuners. They have a new locking tuner that should be lighter weight. They also make an adapter so that no new holes have to be drilled in the head. Will let you know when mine arrive, and how they work.