Phil J no longer deals with Polo's
There have been various group buys going on since PSD (another tabhoo name) looked into doing them many years ago.
Various different hardness have been offered, from the .55 shore of PSD set up to the .70 shore of the last Phil J ones
I did a group buy many years ago, and it was a real pain, trying to get 10 people togther, and then the prices still weren't the greatest and the one of the only companies who would do this work, werent the most helpful.
There was a huge risk of over £1k + with peoples money, if this company didn't fulfil their promise and when they are messing you around, then its not the easiest. If it goes tits up then you risk being seriously out of pocket as an individual.