In my short affiliate experience I have noticed that getting pay bumps lowers my epc?
I guess the network has to scrub to keep their margins.
Is it better to avoid asking for higher payouts?
If you need the bump to make a marginal campaign worth running pass that on to your AM. If you see your EPC staying the same or lowering have your AM ask the OFFER owners what is going. Tell them to lay off the cake throttle.
There are two types of bumps:
Sorry about the noobness, the conversion rates stay kind of the same. (Compared the data)
I thought it was like that because once I run pin submits and got a lower conversion rate after asking for a paybump, but it was probably the advertiser shaving/scrubbing.
Feel free to delete this thread.
Thank you all for replying. 
There are some networks who will give you sky high bumps/payouts to get your business but your cvr % will go down. These guys shave as they increase your payout. I personally dont chase high payouts. I chase high crs 
If you see a payout raised across the board for all publishers (by a large %), it's often a red flag.
CVR tends to drop, but the higher payout attracts new affiliates and tempts veterans to give it another try.
A stimulus, if you will...
Another ploy is the switch from SOI to DOI.
I don't think I've ever seen the new payout compensate for the lower CVR.
What Finch said.
Also a tip I will share, when comparing CR / EPC, don't trust the numbers on the network.
Some networks are known to scrub clicks too ( the excuse is duplicate clicks ) to inflate your EPCs.
Make sure you check only the CR on your tracker, not the network.
^ thats definitely a tricky one most don't look at, go by revenue not epc
I've seen it tonnes of time mate, the pay will get bumped and the conversion rate drops lot of shady stuff on advertisers side
What about this... Seeing not sales when going from PPL to PPS? lol
I've got some good camps doing 15-25% Lead-to-Sale Conversions!!! since traffic was expensive my ROI on the PPL program was minimal, so I started sending traffic to the PPS version of the offer (actually, I asked the merchant to create another account for PPS).
So, not even one sale after 100+ leads, I switched the links to the PPL version and Boom! 10 to 15 sales per 100 leads again...
In conclusion, Networks and merchant can be really shady and greedy 50% of the time.
Did you leave enough time for the leads to mature?
Sales sometimes trickle through later, which is the only reason affiliates aren't pulled from offers on the same day we start running them!
Seems a bit of a stretch though...
That's a healthy lead-to-sale ratio. If this company is burning you, I'm sure you'll find a competitor that's happy to take the traffic.
Yeah Finch, I allowed enough days for the leads to mature, however, my banners/LPs are really good and the source is ultra premium and the GEO also. So I see sales the same day the lead is generated, I guess these users are buying memberships right away.
I'll keep doing the split test for a few more days and if things keep going like that, I will start a thread with the stats from both account, should be interesting!
^ definitely do man sounds great!