What's the difference between a reserve pilot picking up on their off days, and a line-pilot who bids above 75hrs credit? The reservists are only picking up what is left over from the line-holders. Reserve should not be a punishment, the rules should be such that it actually goes senior. We need better callout times (increases the chance of people commuting and it reduces the odds that someone is available to make it for premium.
Typically reserve pilots are junior (left or right seat), they have a higher probability of commuting (additional costs to account for), and they already get minimum days off. If they want to sacrifice an off day for some extra cash to cover the cost of commuting then I support that. To a degree I do think that we could meet somewhere in the middle and limit the total credit that a reserve pilot can pick up (straight time that is, premium is fair game), perhaps an 85hr credit cap or something like that.