Once I had the formula down for skilling up, I was able to put together a table of chances for each point from 1 to 300, depending on tradeskill and character stat.
It looks like tradeskills are designed to take a minimum of 2400 combines to go from 0 to 300. When I tabulated out the odds of skillup for each point, and reversed that into a number of combines per skill point, then added them all together, I came out to 2408.3 average max-stat combines.
Obviously, the way the skills are designed, later points take a -lot- more combines to earn than earlier points. In fact, the first 1210.9 combines will get you to 249, on average, and the other 1197.4 combines are spent trying to get those last 51 points!
Instead of posting a 300-line table of all of the skill points and their average required combines, I made a quick summary:
This is the minimum, meaning you have the max stat required for your tradeskill (e.g., 400 for Smithing, or 815 for Alchemy, as listed in my other post on stats for skill-ups), or you have at least half the max stat and succeeded -every- combine.
If you have half of the max stat for your tradeskill, you'll still have full chances of skilling up on a successful combine, but half the chances of a skill-up on a failed combine.
So, if you have 400 WIS and are Fletching (800 required WIS/INT/DEX for max skillups), it would take you 4816.6 combines to skill Fletching to 300, IF YOU FAILED EVERY COMBINE. Naturally, that's not how you're going to go about your skill-ups (right?), so it'll be somewhere in between. If you keep your combines to those close to your own skill level, and use a trophy, you might succeed on 80% or so of your combines, failing on 20%, so it might take you 2408.3 + 50% (400 WIS out of 800, 600 WIS out of 800 would be +25%) * 20% (failures), or 2408.3 + (1204.15 * 20%) = 2408.3 + 240.83 = 2649.13 combines.
And, naturally, this is only average numbers, The RNG will streak you bad and streak you good. It might take you 3000 combines with max stats, or 2000 combines with less than max. Yay for randomization. :P
Edit: Clarified the paragraph right after the table.
It looks like tradeskills are designed to take a minimum of 2400 combines to go from 0 to 300. When I tabulated out the odds of skillup for each point, and reversed that into a number of combines per skill point, then added them all together, I came out to 2408.3 average max-stat combines.
Obviously, the way the skills are designed, later points take a -lot- more combines to earn than earlier points. In fact, the first 1210.9 combines will get you to 249, on average, and the other 1197.4 combines are spent trying to get those last 51 points!
Instead of posting a 300-line table of all of the skill points and their average required combines, I made a quick summary:
Code:
------------------ Average Combines ------------------ 1 - 10 10.2 11 - 20 10.8 21 - 30 11.4 31 - 40 12.1 41 - 50 12.9 51 - 60 13.8 61 - 70 14.8 71 - 80 15.9 81 - 90 17.3 91 - 100 19.0 101 - 110 21.0 111 - 120 23.4 121 - 130 26.5 131 - 140 30.6 141 - 150 36.1 151 - 160 44.1 161 - 170 56.7 171 - 180 76.3 181 - 190 85.2 191 - 200 91.4 201 - 210 98.7 211 - 220 107.1 221 - 230 117.2 231 - 240 129.3 241 - 250 144.3 251 - 260 163.1 261 - 270 187.6 271 - 280 220.8 281 - 290 268.4 291 - 300 342.2 ------------------ 1 - 300 2408.3
If you have half of the max stat for your tradeskill, you'll still have full chances of skilling up on a successful combine, but half the chances of a skill-up on a failed combine.
So, if you have 400 WIS and are Fletching (800 required WIS/INT/DEX for max skillups), it would take you 4816.6 combines to skill Fletching to 300, IF YOU FAILED EVERY COMBINE. Naturally, that's not how you're going to go about your skill-ups (right?), so it'll be somewhere in between. If you keep your combines to those close to your own skill level, and use a trophy, you might succeed on 80% or so of your combines, failing on 20%, so it might take you 2408.3 + 50% (400 WIS out of 800, 600 WIS out of 800 would be +25%) * 20% (failures), or 2408.3 + (1204.15 * 20%) = 2408.3 + 240.83 = 2649.13 combines.
And, naturally, this is only average numbers, The RNG will streak you bad and streak you good. It might take you 3000 combines with max stats, or 2000 combines with less than max. Yay for randomization. :P
Edit: Clarified the paragraph right after the table.