I get daily payouts to my private wallet from BIT.CLO.SRV. and I am currently testing CLO.MIN.WEB.
As I can see, you have mentioned that it takes ~155 days to ROI for CLO.MIN.WEB. Did you calculate it yourself ? Because, it took ~120 days for me and 114 days for another third party monitoring service as I pointed out here:
https://bitcointalk.org/index.php?topic=1009758.msg11087279#msg11087279.
Yes I calculate these numbers myself.
Today my
Payout-Rankings-Table shows an estimate of 142.8939238 days-to-break-even for CLO.MIN.WEB.
This calculation is based on current payout (which just increased) and it subtracts the daily average difficulty increase based on the previous 100 day average (currently 0.1801801801801800% daily) which recently decreased.
I'm glad to hear you were able to break-even in 120 days! That's great!
The payouts over the past 120 days were greater and the difficulty was lower than it is today, and in the future, payouts are expected to be lower (on average) and difficulty is expected to be higher resulting in a longer time-to-break-even.
With the current difficulty rate, price of bitcoin, and payouts being what they are as-of-this-moment, I believe an expectation of 142.8939238 days-to-break-even for CLO.MIN.WEB is the most realistic.
Thanks for your question.
EDIT: If you're saying that CLO.MIN.WEB pays out at the same rate today that they paid 120 days ago, then they are not mining.