10 hours of slayer = 350k range XP, 400k profit
I did a little test. I thought the figure was way off since I always have a nice steady income with slayer.
So I slayed for exactly one hour. I happened to have the task abberant specters. A task often skipped by many slayers because it is slow and not profitable.
I used the cheap method. No praying. Just cheap food. I also used a terror bird. Not that it would have made much difference if I didn't because I jump between the slayer tower and castlewar chest with rings of slayer and rings of dueling.
I was wearing black d hide legs and body, a slayer helmet, fury, RoW, Climbing boots, a rune defender, rune gloves, and a modest whip.
I use 33 trouts (junk food I have in my bank) per trip (12 spaces in the terror bird). One or two doses of super att, def, and str.
I loaded up at 20.16 at the castlewar chest.
I was back at the castle war chest at 21.15.
So it was actually 59 minutes which included putting the gear on, loading up on supplies and once even charging summoning points.
I used up:
2 terror bird pouches (GE 652gp)
4 doses super att, def, and str (893, 813, and 4686 gp)
And 99 cooked trouts (3069 gp)
I also used 3 charges of the ring of duelling and the slayer ring. I didn't put a price on that.
what was dropped within that hour.Charms:
You can't put a price on charms so I won't.Herbs
10 ranarrs - 56070 gp
3 aventoe - 3885 gp
4 cadantine - 4172 gp
4 dwarf weed - 10920 gp
1 landantyme - 1316 gp
4 kwuarm - 13580 gp
4 irit - 5436 gp
5 haralanders ( I didn't pick them all up because I hardly ever do) 3945 gpregular loot
mystic robe bottom - 48827 gp - and actually sold for 51300
lava battle staff - 10045 gp
Loop half key - 7810 gp
5 uncut sapphire - 2930 gp
2 Uncut emerald - 944 gp
Rune full helm - 21094 gp
mith kite shield - 1326 gp
coins - 640 gp (random event)Seeds
2 aventoe seed - 302 gp
2 irit seed - 474 gp
4 toadflax seed- 1960 gp
1 cadantine seed - 878 gp
2 snapdragonseed - 57818 gp
1 ladantyme seed - 3363 gp
2 kwuarm seed - 16006 gp
A modest 10.113 gp per hour
A whopping 276.214 gp per hour
266.101 gp per hour.
Do that for 10 hours and you have 2.5 million gp.
10 hours of 9 spiders + 1 GWD = 600k range XP, 1m profit
Better than Godwars!
I will keep testing with other tasks when I feel like it, and I actually had no clue what the results would be for this test. I just know that abberrant specters aren't one of my favourite tasks because they don't really drop a superdrop.
I do think that your 400k per hour is way off. Maybe that is right for someone with lousy stats and a very very low slayer level doing a silly slayer monster on purpose.
And what are the requirements for the aberrant spectre?
60 slayer. A level you can reach easily within a short time.
ps. I didn't record my experience gain.