While I believe the Grudge Hybrid would be less than the Sure Lock I don't think it would be enough separation that would allow you to play straighter, more comfortable angles. It's still a really strong ball. Kind of surprised me at first but after looking into it more a lot of people had it just as strong as the original Grudge just longer with more shape on the end. Mine really gets into a nice roll but it isn't as early as the heavy oilers.

The other balls you listed could fit the bill though. I think you especially might like the Dare Devil Trick for that role. A Vandal Smash might not be far off either. I'm not as familiar with the Vandal Destroy or original Cyborg. The Trilogy is pretty angular and clean down the lane. Different motion than the Trick or Smash, although it could work as a step down from the Sure Lock too.

As you get more comfortable moving in and creating steeper angles the Sure Lock will come into play for you more. As strong as that ball is it surely (aha) saves energy and has a lot of power through the pins. Doesn't burn up early and should do very well as long as it's in the oil. I'm interested to see what people are saying about it after a couple months have passed but for now it looks like Storm has released one of it's best balls in the past few years. And they've had some really good ones lately.

Maybe one of the other Locks?  Should give a little different look going from a solid to a hybrid or pearl version.

Dare Devil Trick is a great step-down from the Sure Lock.  IMO  You can always hit the DD Trick with Step Two from Storm and that will give it more length.  I do like the Haywire observation from above and I'll agree with him, but the Trick is the newest and we ALL like the newest one out. 

Yeah im happy with the sure lock. I was affraid at first cuz mostt ppl say those really strong balls arent good for avg-less than avg players like myself. It holds well for me if theres oil and it crushes the pins if i do my part. But if its dryer in the front i have to work hard to keep my length and avoid hitting weak. Hopefully a ball with a little less powerful coverstock will allow me to put some more hand in it and really crank on it when the big Storm is too much.

Dare Devil Trick "sounds" like it would fit the bill for you. The only reason, me personally, I recommend symmetrical balls over asymmetrical balls for newer bowlers, is that every variation of release will be magnified in an asymmetrical ball. Symmetrical balls generally are a touch more forgiving with missed releases, although that isn't always the case %100 of the time (less).