Vague of course due to the intensely classified nature of the beast. RCS data typically requires a Top Secret clearance and need to know. Vulnerabilities are most tightly held, so no way could someone knowledgeably discuss comparisons in a public forum without violating the law.
That said, you can figure the advances in stealth since the F-117 have addressed the weaknesses, either with technology or tactics or both.
Yes, my thoughts as well. These radar types, at least in my cursory reading, looks eminently bulky and easily neutralized.