Very handy that they do three different grades in the front bushes which will likely be road, fast road, and track grades. 95 hardness is almost solid.
I could see the 75 version being a useful way to extend the lifespan of good quality control arms, as usually the rubber fails well before the balljoint. If memory serves, the 100K Meyle set I took off Jim's FE all still had good balljoints, but the bushes were worn out. Thats diametrically opposed to the nasty Chinesium arms where the balljoints last months, not years. A set of the 75 poly for £200 would need the balljoints to last another 3-4 years at least to justify the costs on those grounds.
For a fun fast-road car though (manual gearbox essential to justify that title), a set of poly all round, potentially with 85 in the control arms could be a worthwhile upgrade
