Another user of the truck front hitch method - been working fine for us for 20yrs!
I might not do it if we had really fancy and expensive bikes though as they can get a bit messy up front, but then I suppose they would also on the back of the trailer.
We just have a couple of old mountain bikes we take along - and do get a lot of use out of them.
I do like the fact that I can keep an eye on them as we drive. I had to modify the standard hitch rack we use because initially with ur present 2500HD, the bikes rode too high. I cut & re-welded the bike rack so I can just barely see the handlebars /seats at the hood line to know that they are still secure.
There is a very minimal effect on truck headlights in our installation, but we are rarely on the road after dark so it is never much of an issue for us.
Brian & Connie Mitchell
2005 Classic 30'
Hensley Arrow / Centramatics
2008 GMC Sierra SLT 2500HD,4x4,Crew Cab, Diesel, Leer cap.