Smoothing out Sion's Gameplay

In general I feel like his kit plays too much against him, and sure that is all fine and dandy but the disparity needs to be lowered a tad. His kit has a lot of potential and should stay that way but it shouldn't be trying to go from 50% to 80%, it should be trying to go from 70% to 100%, to use a bad analogy with numbers.

General:

• Health gain per level increased to 85 from 70
• Base Health lowered to 400 from 420

Passive:

• Base movement speed during revive is now 450
• Sion now revives .5 seconds later rather than .75-1 second later
• Sion is immune to slows and grievous wounds during his revived state
• Sion now loses health at a consistent rate of 10% per second rather than a ramping rate
• Lifesteal during revive increased to 200% from 100%
• Death Surge's MS bonus increases by 50% for each enemy champion near him beyond the first (so, 50%-75%-100%-125%-150%)
• Death Surge now decays over 1 second down from 1.5 seconds

Q:

• Duration til knockup reduced to .75 seconds from 1 second
• Duration til maximum knockup and damage reduced to 1.75 seconds from 2 seconds

W:

• Duration til manual detonation is allowed reduced to 1.5 seconds from 2 seconds
• Maximum time to hold the shield before it explodes automatically reduced to 4 seconds from 6 seconds
• Health gain increased to 4 normally and 10 for Champion kills and assists from 2 and 8 respectively
• Shield Strength lowered to 10/30/50/70/90 from 30/55/80/105/130
• Maximum Health ratio increased to 12/13/14/15/16% from 10% at all ranks
• Cooldown increased to 18 seconds from 13 seconds
• Now starts the Cooldown as soon as the ability is used rather than after the shield explodes