I am almost to the bottom of my fruit salad. I'll try to say what I am trying to say one more time (did that make sense to any of you? it didn't really to me either).
At the risk of sounding like a complete bowl of fruit myself (Ok, I agree - we are past that point.............) I agree with Mike Preston.
n+1 groups is more flexible than n groups no matter what the groups are defined as.
What I mean, is that when you are setting up your plan, and you show your client the following scenario-
Group A - Physicians 20% of pay
Group B - Clinic Directors 10%
Group C - All others 5% of pay
Let's assume that they reply with , "WOW that's great, that is exactly what we wanted" . If group C is reasonably large (relative term) then it is not too likely that you will have to come back next year and tell them that Group C requires a 8% of pay allocation to pass ABT.
On the other hand, if you have a plan that is set up as-
Group A - Physicians 20% of pay
Group B - Clinic Directors 15% of Pay
Group C - Registered Nurses 12%
Group D - Orderlies who like Fruit Salad 7%
Group E - Orderlies who hate Fruit Salad 6.5%
Group F - Receptionist 6.0%
Group G - all Others 5.0%
I would agree you have a much more flexible plan. However, I would advise extreme caution in how this plan design is communicated to the sponsor.
When that very young orderly who hates fruit salad gets mad and quits, it may result in Group E requring a 9% of pay allocation rate to get your testing to work. (He was one of only two orderlies who hate fruit salad. The other orderly is 50 years old)
We would probably all think that the plan still worked pretty well. But we all have clients who feel that there is a certain pecking order and they do not want to violate this in the amounts of retirement plan contributions. Neither do they want to be surprised by large changes in the contribution amounts. They might be upset that Group E had to be treated better than Group D.
I know this is a silly example, and quite trivial. I know that many clients would be fine. I am merely trying to explain why I still feel that it is best to recommend to a client to think of the minimum number of rate groups to get the job done - YES the plan is a little less flexible, but the numbers tend to be more stable from year-to-year.
Alas, I have come to the bottom of my fruit salad............ I will take leaf of you all and peel out of here, it's the pits .......................(Whew, it's either not early enough or not late enough for such a bad pun to be funny. Sorry

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