Question [Q] Flashing HBOOT 0.85 for ART

Hello,

I have seen a discussion that if one would flash hboot 0.85 art would be working fine (no fcs)
post :http://forum.xda-developers.com/show...&postcount=767

My question would be :
How would changing hboot affect performace or compatibility with other custom roms (4.2, 4.1, 2.x.x) , and do i have to change radio also?

Are there any warnings/precautions/tips for dooing this?

Thanks in advance
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