Replied to PM. Just to clarify for everyone else here:
The issue as I see it is that there looks to be two methods of awarding RP. One is as a fixed number of points per unit of product (which is as the mod stands now). The other is as a number of points based on the total (or subtotal) spend (which is the direction Eric is going).
With this in mind the next release of the RP mod will have a configuration item which will allow users to select their method of reward- Either by Product Unit or by Order Total. The Order Total method will also be able take into account any discounts (and hopefully cover other price changing mods). However it will mean that user will lose the ability to display Reward Points against each product (as it will not be fixed) and also it looks like any Product Group redeems will be lost too (the whole calculation will need to be done on the Global Reward Point Ratio).
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