Yeah, I mentioned before I hate hotswapping and it has become more important these days so I am trying to keep a maximum spellpower permanently, for using quickened mass cure spells only in trash fights. Raid healing is done with a nice Thaumaturgy staff but then I am completely healbot, nothing else. Epic elite is is still too much incoming dmg. for my multitaksing skills lol. That is why I am not playing epic elite very often.My experience with devotion/radiance/impulse is a little different. I find it easy to swap them in (as a weapon set) when needed. For AoV 2 shoulder cannon, radiance item only needs to be equipped at the time of casting it, it remains boosted even if you remove the radiance item. For DP, I only really use that on longer than 20-30 second fights, so swapping it in while casting that is not too much of an issue for me either. Healing seems fine to me in most quests without a devotion item (yeah I know this isn't the most efficient way...). I still manage to overheal a lot with my mass heal without a devotion item. The only time I really equip a devotion item full time is when I am acting as a full time healer in a raid or quest or when someone is taking fast damage. (This only really happens in epic hard raids or epic elite quests).
In general I aim for everything, which is providing permanent protection. I chose a Reflex boosting item as Cloak with Lightning Strike guard and a Smoke2 Helm. Displacement clicky is just that awesome. Stalker Ring somehow is protecting better than I thought. Tradeoff is your plan on Purple Dragon Knight set. I cannot use it with Stone Heart. I need Claw Gloves for avoiding redundancy (have a Stone Heart with +8 STR so combining it with PDG is wasted +7 STR :I).
I guess you will find even more options to combine xpack items depending on what random stats you will get. A +8 STR Conflux (blablubb of prowess, random STR/CON +8 or insight +3 iirc) might be another option and you can wear more caster stuff for boosting spell pen. and dmg.
I still do not see the utility of the Archon. I value APs too high and somehow the Archon is too less gain for invested AP. How much damage does it per tick (full spellpower assumed)?
I am using Epic Rock Boots for this guard. These boots have an insanely high proc rate, higher than GS as it seems to me so I got the boots and hotswap them in gang fights. Losing 30% Striding is not an issue since you are hasted anyway or crowded and/or can use wings. But yeah, if you are using a 3 piece Abi Shai then this is not an option. But it is actually easier than greensteel.1) remade GS bracers to include earthgrab guard (I equip the conc op ones now only if I NEEDto fill up). I feel there is no real need for conc op/torq anymore. I did this because I like to run earthgrab guard + freezing ice guard + air guard most of the time, a very potent combo.