Anyone can get their Defense near to what a tank has when they block, up to 75% mitigation (80% with Fortified Blocking). Ice and Atomic tanks just get that all the time their powers are active. This doesn't help very much for the very common case of trying to do a pickup though, where you can't also block.
Actually Atomic does not need fortify blocking at all. Blocking only reduces Atomics effectiveness as a tank.
Regarding the normal troller/healer shields, believe it's 3 hits or 100% Dom+100% resto, whichever breaks first. Agree with the suggestions. Gear mods, SP, base mods, even the iconic tree (resto, Dom) are all levers for specing stats. Resto is attractive because we get more resto per skill point than Dom for the shield formula. With gear mods and SP going to dom, resto and health. I put power into my blue base mods to offset tanks's low power pool. It's more of a personal choice, plus DPS side will benefit. Health is a good safety net. When DMG comes, it hits defense (ice armor and block) first, then shields (resto and Dom), then health. If the first two are unavailable for whatever reasons, health is your last line of protection. If no power or a NPC knocks you down just when you're about to cast that next shield, but reflection or breakout trinket still on cooldown, or you need just a bit more time and survivability until healer kicks in, soda comes or the DPS to off the boss; having health makes us a bit less squishy.
Winter Ward's issue is solved by followup with Front Snipe or Inescapable Storm. I use Low Pressure myself.
Ward doesn't take two seconds to recover from yo. I know that it's my 'final resort' shield, but I use it frequently with no issues myself because of the aforementioned method.
well because of the dovetail u cant use frostsnipe fast enough its definitly something between 1.5 - 2 sec +delay etc...
Hraesvelg posted a video, apparently what you're thinking wasn't fixed about the Focused Resto mod is fixed now, it drops the bonus when hit.
Thank you. It appears to flip back and forth twice or more ... doesn't look like it's waiting 10 seconds. Unfortunately, you didn't keep the stats up while the shield is up. Does a "hit" count if it's deflected? I don't know about other ice tanks, but I try to cycle my shields without a break. eCR 151, 8% was close to 700 Resto. That's at least an extra hit per shield. Again, not saying this is better than the blocking mod. It's just an interesting alternative. Thermals versus a warmer coat. Gotta have something on under those shields.
The thing about rage tanking that is far superior to ice is there is a clear define mitigation time that you are working with. With ice you have to constantly be watching for when your shields are gone to reapply and the only queue you get is the number of reds you see. also unlike rage that likes to stack adds with ice I found myself trying to limit the number of adds because more adds equals more damage which means less shield time. With ice your shield strength is based upon your stats and depending on incoming damage the duration can vary greatly between content. Also I found that with ice I am usually recasting a shield about every 6 second versus every 10 seconds with rage. You are also more healer dependent as there is no way to heal back any damage taken other than soda and supply drop. Resto does help with shield strength except for reflect. usually you get more Resto per a sp spot than dom. I was just popping a resto soda and resto in the generator.
Regenerative shielding hands mod. + some extra resto = ice tank that can stand up as long as he has power.