A DB plan provides a normal retirement benefit at age 65 of 70% of average compensation up to maximum covered compensation and 22.75% of average compensation in excess of maximum covered compensation for participants with 35 years of service. Thus, it provides integration in accordance with the simplified Table IV under IRC 1.401(l)-3(e). I.e., the maximum permitted dispairity is .65%.

Now, suppose the benefit commences at age 70. Then, the plan says to actuarially increase the age 65 benefit. Suppose the actuarial increase factor is 1.7. Then, we have 1.7 x .65 = 1.105. But, the maximum permitted dispairity at age 70 under Table IV is 1.048. In short, even though the Plan says actuarially increase it appears that Table IV would limit.

Any comments?

Easy. the way you describe it, employees get a higher benefit of 70% up to the maximum covered compensation.
Then they get a lower22+% above covered compensation.

Now if your question was about a plan with 70% of total compensation plus 22+% of excess compensation, I would have to think about it. But not until that last 5500 is done......