I know that some people changed the buttcaps of those racquets (because by default it says "BLX" all of the sudden), so I have the question related to it.
Is the handle hollow or not? Thank you in advance.
Thank you both. Pity -- I wanted to change the balance to make handle more heavy. However if I don't put anything inside, it would mean making handle more thick.
You can still make the handle heavier, which is the same as making your racquet more head light. You can follow TW instructions on applying lead tape to the bottom of the throat or just inside the handle near the buttcap. You can also replace the standard grip with a leather grip. If you're looking to make the handle much heavier, you can use a heavier leather grip from either Dunlop or Volkl.
not all their frames are foam-filled. some have foam in the handle, some do not. and the six one tour is the only one completely filled with foam i believe. though i could be wrong, not really a wilson guy