This may involve any number of variations, some are pretty exotic and engineered systems tend to be more expensive.  

I know that there's going to be a lot of variation from property to property and community to community, but I am just tryng to get a general sense of best practice.

In 2003, it was 5.9% See the variations in the chart?

Similar to how one needs to know their local market intimately to know what a good cap rate is for a specific location, you’ll find a lot of variation on what constitutes a good rent to purchase price ratio.

There were all sorts of variations in the name of the trust in the paperwork that made the filing void.

Make sure to check for all variations of the owner's names.

or some variation of that.I’ve never once heard this and thought “you’re wrong.”

You can always ask the individual but when you have direct mail, the more variations you send, the harder it is to track.

The bamboo looks nicer, but had a lot more issues (probably due to how it was installed).When the wood started to shift naturally due to variations in temperature and humidity, cracks between joints started becoming more pronounced.

If so, as long as you know what you are calculating in each variation who cares what you call them.As long as you are comparing your projects in the same way, one to the next, along with future purchases, it doesn't matter at all.