No, it won't. Even if it procs every 30s when you use SC, you would lose 4.5 seconds at best. If you got the 45% recharge tier 4 Alpha boost, that would get you perma-Hasten, or almost to it. My Scrapper doesn't use purples and that's how I'm getting perma-Hasten.
Also I don't know if you monitor your recharge in combat but it will not ever boost your recharge. Shield charge summons a pet and the pet is what gets the recharge bonus, which is pointless.
I feel sloppy. I really should have caught that. Ah well, Eradication proc it is!
Sadly, Spiritual is already accounted for. The character's only 18, though, so I've still got plenty of time to plan.
Thanks. 
's doesn't make things plural.
What is the primary power set? Maybe my DM/SD build would work for you if that is what you are leveling.
BS/Shield. I'll post the build I'm working on.
I wanted to get 45% with single-stacked Parry first, and then go for Recharge with Regen and Recovery as secondary concerns. Also important was being able keep most of my bonuses when exemping to 28 (what? Moonfire's TF is great! :P ), and I think the hit in performance was acceptable, especially since lower enhancements are often quite cheaper.
I'm actually taking another look at my attacks right now, but here's what I've come up with so far.
Hero Plan by Mids' Hero Designer 1.92
http://www.cohplanner.com/
Click this DataLink to open the build!
Code:
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's doesn't make things plural.
I'm about 10 seconds away from perma-Hasten, but I have the Force Feedback +Recharge proc in Shield Charge. Think that'll get me the rest of the way there?
I'm pretty sure that I'm close enough for practical purposes either way, but it'd be exciting to reach that benchmark for the first time, especially without Purples. :P
's doesn't make things plural.