Yeah was thinking that. Would you say I should add it through the Handle, or wrap it around the very top perhaps? Would it make any noticeable difference?
When I've gone through some home tunings with my own gear, I'll usually put 1/2" lead tape on my handles and cover that with an overgrip. I want the extra weight to be as far down my handle as I can place it so that it can most effectively bring the racquet's balance toward a more HL layout.
I like to have a little bit of a flare at the butt cap so that the handle doesn't feel like it can easily slip through my fingers when gripping with only moderate pressure. So my first application with the lead tape is usually two layers around the butt cap - about 1/4" up from the bottom edge so that it's easy enough to cover with my overgrip.
If I need more handle weight after that, I'll put a strip of lead tape - maybe 4"-6" - on both of the bevels that are parallel with the edge of the frame, not the string bed. I call this handle-leading a "stirrup". Because this extra weight is effectively in my hand when I hold the racquet and not out on the hoop, it generally doesn't make the frame feel any more cumbersome for me. I've actually made a couple of my racquets easier to handle and swing around after leading only their handles. These include the pair of Volkl C10's I have in my bag - leaded handles give them a balance up at around 11 pts. HL and they weigh in at 12.5 oz. This gives me a great fit for my all-court game.
Sounds like you added a LOT of lead to your hoop. I'd recommend starting over and adding only a few grams total up there at a time - I like placing it at 3/9 o'clock to get the most stability (twist weight I guess). I'll bet that when you arrive at that spot where you have just enough of the stability that you want, you'll be able to feel it. But once you get there, you obviously don't want much extra beef or the racquet might be working against you.
A racquet with a bit more HL balance than another will naturally pivot around your hand a little more quickly - because its center of gravity is closer to your gripping hand. This can make a heavier frame much easier to maneuver up around the net, but it will also affect your strokes and serves. The less HL racquet will want to pivot or "release" through a longer arc when we swing it and this can be most noticeable with your serve. A less HL racquet will force you to toss a little further out ahead of you so that the racquet has more room to turn over. Strokes with a less HL racquet than your personal normal will likely feel a little better with a contact point that's a little further out ahead of you, too.
I'm convinced that racquet balance is maybe the most underappreciated racquet spec out there. Any frame can feel way more familiar for me when its balance is right. Even though a middleweight racquet might be easier to lift and accelerate, it won't move right for me if its balance is significantly different from my regular players. Also keep in mind that as racquets get heavier overall, they generally also need to be progressively more HL so that they don't get to be too sluggish. A 10.4 oz. frame can be manageable with a close to even balance (or even slightly head-heavy balance), but when they get up around 12 oz. or more, they generally require at least 7-8 pts. HL balance to not feel like we're swinging them under water.
Be patient with your experiments. Tuning with lead tape can be a great way to tailor a racquet to suit you better, but it seems to require small steps and at least a little bit of trial and error. I've been frustrated with a couple racquets that just wouldn't cheer up for me after some rounds of tuning and trying different string layouts. But I've also saved more than a couple from the classifieds when I tweaked them and coaxed out some big improvements in feel and performance.