I actually ran an H&R chassis last night too:

The difference is I ran mine on a digital track. That's a D132 chip with a tiny piece of styrene underneath it to insulate it from the brass, held in place by a rubber-band because why over-think it? It worked. The other modifications included gluing two tiny styrene tubes beneath the front axle to keep the leads from touching it, adding a bit of weight, drilling a hole for the IR bulb, and snapping off the hunk of brass that the leads originally were threaded through. The guide was dremmeled down a bit since in stock form it hit every single track connection. This chassis has PG fronts and H&R silicone rears, driven by a Hawk.
Last night was a test, hence the taped-together Buick Regal body, but it ran very well on the track, and seeing a Regal zoom around the course was simply cool.

Comments from the guys mentioning how smooth it ran was enough for me. The project is moving forward and I soon hope to be able to provide an entire field of early '80's NASCARs. This should be a very nice change of pace to our usual stock D124 racing.