Ummm. I just started doing them.. for the first time.. I had been doing the lethal darts quest and not getting ANY kits over LOTS of bolts. So I started to train up my fletching. I had 60 skill. 1st batch of 1250 boards.. I get a Yew kit. 2nd set of 1250 boards.. i get a heartwood kit. 2500 boards and a yew + heartwood kit.. my skill is now 65.8. I am sure this will not keep up that kind of pace, but being as they said the odds were supposed to be 1/10000 the chances of me hittin that lotto right as I start is very slim unless something is up with the %%'s as people are talking about. If I were you I would hop on doin some quests and see how it works for you.. I posed this in another thread but I thought I would make a post about this because I see all the locked post at the top about smithy/tailoring rewards but apparently whatever changes has changed the heartwood quest chances too. I ONLY tried this because I saw a few posts here and in the UHall about people getting more heartwood kits lately... so i started and got one..maybe we should get a locked through for heartwood too to try to get the results to see if these have changed too.