I'm thinking of buying either the LM2101 21" (5.0Ah battery) or the LM2102SP (7.5Ah battery), and I'd like the Community's sense of which would best fit my needs. (I've read enough of these conversations to know opinions are diverse on any given topic - so I'm especially looking for input from those whose needs, circumstances or experiences parallel my own.) This year I had most of my front yard landscaped into a large “free-form” garden. This leaves me with relatively small – but connected - areas of grass to mow; and with long stretches of curved molding that define the garden areas. While there aren’t “steep inclines” to mow, the area to mow is uneven in several places. I prefer to mulch (vs. bag) cut grass and leaves as it requires less effort and there’s no cost to recycle yard waste. I want a cordless, electric lawnmower for convenience and ecology. I’m 72 years of age and neither “running time” nor battery charging time is an issue for me; either the battery will outlast me, or I’ll need a rest!