I use Dungeons and Dragons Miniatures, which come prepainted, on 25mm bases.
As the frontage for 4 HF in 25mm scale is only 60mm, we clearly have a problem.
Our solution is to use bases 5" x 1.5 " .
In fact we use 5" x 3" and place the minis on them 2 deep.
We find it works okay as most troops fight 2 deep anyway.
As the frontage has now doubled, in order for the wheeling circles to work as normal, we use a 2" to the MU.
This actually looks right for 25mm/28mm,not just the movement but the bow ranges as well, but means we need much bigger tables.
Which also actually looks quite good.

Anyone tried other options with 25/28mm ?
Anyone using warhammer miniatures ?