Dinatrol land rover kit is very good ! Used waxoil on my wife's L200 and it is harder to put on and more messy
+1 for Dinitrol. Was recommended that on here too. Bought a kit for my rebuild. Only used the cavity type so far, but have been very impressed with it. Penetrates and travels really well.
When I researched this subject a few months ago, the clear winner seemed to be bilt hamber products.
Followed by dinatrol.
In one accelerated test the metal covered in waxoyl had completely disappeared , whilst the bilt hamber covered one was still fine.
If I wasn't at work, I'd stick a link up.
As to ease of application , I don't know as all the cans are sitting in the shed still waiting for some spare time.
There are two types of rust proofing from bilt hammer .
Yep! But dozens of ways to spell it!
Agree entirely about the prep, though, nothing will help unless the chassis is clean before application.