Spinester, lvl 50 spine/dark scrapper. Founder of the sg the Super Union and a great scrapper. I don't know much on how he experienced it but he sure was quick (or I was slow but that's another story). Unfortunatly he doesn't post that much here 
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Ive got my spines/da scrapper to lvl 22 now and I haven't had that much problems. yeah - the aggro u get from the aoes is bad, but expected - but this can be mitigated by slotting the defence shields well with SOs.
I think the key is here, that you have to know what u can deal with - spines/da is the minion king; it despatches them like chaff, but struggles with the bosses.
With a decent tank (with taunt who knows how to use it) you become a major dmg dealer (who survives). I haven't reached high enough yet to slot all my defences with SOs, but I expect to be able to handle the dmg during battle, wiht the occasional heal and oppressive gloom to add some control to mobs attacks.
Has anyone ever got to 50 with this build.
It was my main build from way back in April and I have just re-rolled my char after the blood, debt and downtime to reach the dizzy heigths of lvl 38 (I had to roll a blaster just to have a bit of action). I resepc'd a few times and still couldn't get a workable build, tried all-damage and all-defence etc.
Great AoE but lacked any really damage to stop the agro growing (debt magnet) and the defence couldnt stop a wasp sting let alone zombie sick.
I kept at it hoping that it would come into its own post 30, but apart from the psi def (which is amazing) I still couldn't solo much and in teams couldnt do enough damage so not really doing a scrappers job.
had a lot of fun geting debt and blasting stuff with spines but the combination just never seemed to fit.
Anyone else tried Spines/DA and had any success, would like to know?
Re-rolled a MA/Regen (feel like I'm taking the easy route but I just wanted to hit stuff) I do miss taking large groups of minions down with spine bust and dark embrace.