Used all the dry compounds over the years (don't use it now), I would honestly rate them as follows, considering (a) performance and (b) price / value;-
1). Envirodry "White Tea"
2). Envirodry "Green Tea"
3). Solution VLM
3). HOST Extra
4). HOST
5). HOST SJ
6). Sebo Duo P
7). Dr Tork's
I think the only one I've not tried is Chemspec's. You really can't beat Envirodry. 12Kg for £22, versus 13Kg of HOST for £50 ........... !!!!!! And the Envirodry is at least as good.