well, I don't know how many 'points' any of you get for your 'conclusions. maybe some partial credit.
lets see what Notice 98-1 says. In particualr the second paragraph of section V!!!!!!!!!
Looks like it says adding a match feature gives you the right to use 3% BUT only if you don't aggregate with another plan that had a match faeture in the prior year.
V. FIRST PLAN YEAR RULE UNDER PRIOR YEAR TESTING METHOD
Section 401(k)(3)(E) provides that, for the first plan year of any plan (other than a successor plan) that uses the prior year testing method, the ADP for NHCEs for the prior year is 3%, or, if the employer elects, is the ADP for NHCEs for that first plan year. For this purpose, the "first plan year" of any plan is the first year in which the plan, within the meaning of section 414(l), is or includes a section 401(k) plan (i.e., the first year a plan provides for elective contributions described in section 1.401(k)- 1(g)(3)). However, a plan does not have a first plan year if for such plan year the plan is aggregated under section 1.401(k)-1(g)(11) with any other plan that was or that included a section 401(k) plan in the prior year.
Section 401(m)(3) provides that rules similar to the rules of section 401(k)(3)(E) shall apply for purposes of the ACP test. For purposes of the ACP test, the "first plan year" of any plan is the first year in which a plan, within the meaning of section 414(l), is or includes a section 401(m) plan (i.e., the first year a plan provides for employee contributions described in section 1.401(m)- 1(f)(6) or matching contributions described in section 1.401(m)- 1(f)(12), or both). However, a plan does not have a first plan year if for such plan year the plan is aggregated for purposes of section 1.401(m)-1(g)(14) with any other plan that was or that included a section 401(m) plan in the prior year.
For purposes of this notice, a plan is a "successor plan" if 50% or more of the eligible employees for the first plan year were eligible employees under another section 401(k) plan (or section 401(m) plan, as applicable) maintained by the employer in the prior year. For example, in 1998, Employer H sponsors Plan T, a section 401(k) plan. In 1999, Employer H establishes Plan U, also a section 401(k) plan, which had 200 eligible employees, including 100 employees who were eligible employees under Plan T in 1998. Plan U is a successor plan.
If a plan (other than a successor plan) uses the prior year testing method and for its first plan year the plan determines the ADP or ACP for NHCEs for the prior plan year using the ADP or ACP for NHCEs for that first plan year (in lieu of 3%), then the use of the prior year testing method in the next testing year is not treated as a change in testing method. Such a plan would not be subject to the limitations on double counting described in section VII.B. for that next testing year. If a successor plan uses the prior year testing method for its first plan year, the ADP and ACP for NHCEs for the prior year are determined under the rules in section V of this notice.