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I would not use it for racing ,
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It seems to me that it is often overlooked that the "standard" kit offered in both the RS and 5L kits are, let us say, oriented towards sports touring and comfort.
If race performance is required there is a specific Suplex front race kit that comes with several springs, shims for ride height adjustment and adjustable Quantum race dampers. The front suspension on the successful Williams race car is a good example of what can be done for track preparation. As I have mentioned on several occasions the lowest rate spring of the race kit is available on request from Suplex if a harder edged experience is desired.
The 5L kit can not yet be used for racing (class rules) but different higher rate springs can be obtained for it.
Peter
Whilst I appreciate that the Williams car uses it for racing , as far as I am aware no others do (yet?) They have the added benefit of Peter Ballard living nearby and he does spend a lot of time developing and refining the front suspension to suit the track for them. Quite frankly this is way beyond what a privateer can afford, and certainly would take a lot of time before each meeting. When I raced in the 60s, 70s and 80s I used the standard +4 factory set up for a whole season and would only strip it down to check it over at the end of the year. I appreciate the racing and technology has moved on since those days, and track times are much faster, but I still don't think I would want to spend this amount of time or money. There is "lower hanging fruit" which I think would gain me more time per lap.
I still maintain that there is slight "loss of directness" at the front with the RS system, because it absorbs bumps I think this is inevitable (but others might contest this , and I have not tried the harder springs of the RS option pack for racing). I have learned to "trust" it and it has never let me down. However when racing and contesting every centimetre of the track I think I would prefer the visceral direct feel of the "standard" set up.
