potion of experience

[Amnesiac]

I've found a potion of experience playing a bloodless vampire. Is it halved? Also, should I leave it for later?

[Sandman25]

It looks like the potion is not different for Vp.

  Code:

    case POT_EXPERIENCE:
        if (you.experience_level < 27)
        {
            mpr("You feel more experienced!");
            adjust_level(1, true);

            // Deferred calling level_change() into item_use.cc:3919, after
            // dec_inv_item_quantity. This prevents using SIGHUP to get infinite
            // potions of experience. Confer Mantis #3245. [due]
        }
        else
            mpr("A flood of memories washes over you.");
        more();
        skill_menu(SKMF_EXPERIENCE_POTION, 750 * you.experience_level);
        break;

[Amnesiac]

it says that I gain 750xXL, so should I leave it untill 25-27?..

[Sar]

No, you should quaff it right now.

[Sandman25]

it says that I gain 750xXL, so should I leave it untill 25-27?..

Don't forget about increased skill cost. Later you can gain more skill points but it can increase your skill level less. I don't have accurate formula to choose optimal behaviour so I usually quaff experience instantly: keeping the potion in inventory is stupid and dying to Sigmund/Grinder/Erolcha when you could have more HP, MR, etc. is stupid too.

[crate]

You gain much more skill xp relative to xl xp if you quaff !exp at lower levels (so it is more beneficial to do so).

You can easily test this in sprint. Zigsprint even gives you a potion of experience. You can also see this if you find !xp in a zig in a normal game; they have little benefit to most zigging characters (since you are such a high xl already).

[Arkhan]

Whoaaa, I took a wizmode human to zigsprint twice and if I quaff experience at XL level 1, putting all the points into a single 0.0 skill raises it to 7.3 but if I level myself to XL27 then putting all the points into a single 0.0 skill raises it to only 5.0.

I didn't know experience in general(?) worked like that.

[Sandman25]

Whoaaa, I took a wizmode human to zigsprint twice and if I quaff experience at XL level 1, putting all the points into a single 0.0 skill raises it to 7.3 but if I level myself to XL27 then putting all the points into a single 0.0 skill raises it to only 5.0.

I didn't know experience in general(?) worked like that.

It is even worse actually. If all your skills but one are at level 27, you will barely get any benefit for the remaining skill. At least I remember some occasions when I got skill increased from 10.0 to 10.1 from the potion (all experience from potion of experience went into this skill only).

[Amnesiac]

Right, I forgot that has hapenned to me too