Michelin Latitude Sport 3
235/55 R19 101V

and

Michelin Latitude Sport 3
235/55 R19 105V XL

I am looking at these as tyres for changing to in the new year

can anyone assist with experience and opinions?

plus what are the differences?
Contis are not lasting to well on the front edges

There are many threads on here relating to tyre speed and load ratings, here's one to start with: http://www.freel2.com/forum/topic25331.html. A search will reveal others.

Consensus seems to be that whilst 101 is adequate on paper for the FL2 in normal use most of us would go for a higher load rating (such as the 105 XL you mention).

I can't comment on the Latitude Sports as I've never used them.

Standard fit is Latitude Tour HP 101/H (from TOPIx) if that's any help. Both the ones you mention have a higher rating than that (101/V and 105/V). All the other standard tyres are rated 103 or above though, and most are V rated apart from the winter tyres. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Update to that - on a different TOPIx document that tyre is marked "NAS only". Not sure which country or countries that refers to, but it looks like the 101/H load rating may not apply to UK on original equipment. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

NAS is usually means North American Spec

I thought so, but there is also a category "USA and Canadian Markets". It's an internal document - I expect THEY know what it means! Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

As a rule, I understood XL (extra load) tyres to be fitted as standard to commercial vehicles and people carriers and they have a stiffer sidewall to carry the extra load. If fitted to a car they will give a harsher ride but I didn't notice it too much when I had XL tyres fitted to my FL2. You'd probably not want them fitted if going off-road as not much flex in them. Past: FL2 TD4 HSE Auto
Evoque SD4 Dynamic Lux Auto
Present: Audi A3 S Line.