QUOTE (mmmkay @ Aug 9 2011, 07:58 AM)

I still have a lingering question about what 25% discount rounding normally means. 0.25 pp powers get discounted to 0.1875, 0.188, 0.19, 0.2? Which decimal do we round to is what I normal ask, but there are times in SR when you round down, so I'm not sure what to think here.
When Street Magic reprinted the adept geasa 25% power point discount, they used the same wording:
QUOTE
Adepts and Geasa
For a more adept-driven game, gamemasters may allow adepts to voluntarily take a geas for a specific adept power; in return, the Power Point cost for that power is reduced by 25 percent (round normally). In this case, breaking the geasa (sic) only affects that power; the adepts remaining geasa-limited powers are unaffected.
We use this optional rule. Since this feature is descended unchanged from SR3 and there doesn't seem to be any new rounding system introduced, we have ruled that the rounding might as well descend unchanged from SR3 too:
QUOTE
Adepts and Geasa
A power limited by a voluntary geas costs 75 percent of the standard cost (round fractions up to the nearest quarter point), with a minimum cost of .25 Power Points. For example, purchasing the astral perception power (standard cost of 2) with a geas costs only 1.5 Power Points (2 x .75 = 1.5). If the power is purchased in levels, the reduction in cost is applied to the total cost of the power. For example, if the character purchases the body control power (standard cost of .5 per level) at level 3 with a geas, he pays 1.25 Power Points (.5 per level x 3 levels = 1.5 total cost; 1.5 x .75 geasa reduction = 1.125, rounded up to 1.25).
This works well and keeps the numbers tidy.
QUOTE ( @ Aug 10 2011, 06:50 AM)

On rounding of power costs: for ease of use, add the total cost of all discounted powers together, then discount the total. Rounding up to the nearest .25 point might look better but is unnecessary.
In our experience things like this just encourage the adept to geas everything so that they end up with Magic x 1.333 Power Points. As the numbers the OP quoted demonstrated, the powers in such lists have needlessly awkward costs. We have found the MitS ruling works much better. There's no point geasing a single rank power that has a base cost of 0.25, but if you're buying a really hefty 4-point power, a geas is a significant boon. Consequently the geasa get used only where the character is investing strongly in a certain direction - not spattered about on every whim the adept dabbles in.