Try again...
For any DIY enthusiast reading this there's a few points I would like to make.
I wouldn't bother with a £40 plasplug cutter from B&Q......a grinder with a decent blade will be 10 times quicker and easier to use..
Use a metal straight edge or laser to keep your tiles in line, never try to free hand them down, you need a straight line to tile off..
Use a Proper paddle mixer to mix the adhesive, a drill is to fast and will burn out or you will end up with adhesive everywhere..
Any high points should be ground level or the whole floor should be leveled using SLC to prevent voids under the tiles.
And finally, be careful what you see on YouTube, alot of the advice on there is completely wrong, and posted by builders that haven't got a clue about tiling..
All due respect but I cannot agree with some of this.
The Plasplugs cutter worked seemlessly on these type of tiles, it was extremely easy and as for cutting by free hand, take a look at the line along door step (thats an angled edge) and the one along the cupboard threshold, it wasn't a problem for me but then I'd say people know if they have the eye and patience for that.
As for the drill, maybe you are right but my drill has 2 gears and the first was certainly not too fast, once the mix was almost there I turned up the speed which is when the drill struggled a little so low speed is the way to go, had it not been for the 2 gears I may have struggled to get control, I know this as I started in second gear
😉
As for the high point, to me as a DIY'er it made sense to start there after taking advice on that may I add and it worked for me. I'd have been very reluctant to use self leveling when the one bad point on the whole floor was minimal, before I pulled the old Vinyl tiles up I was dreading what I might find but it was a dream, It wasn't until I got down on my hands and knees with a level that I realised there was one small bulge.
Thats a fair point though and you know far better than I but I would agree that making sure that floor is as level as possible is vital and as for a laser, thats a great bit of advice, I will be using that next time. The white lines did help but covering them with adhesive was an issue!
Again as for YouTube, if you look at at least 3 or 4 videos specific to what you are unsure of you will highly likely find the right or an accepted answer. Mine was to do with back buttering and adhesive depth mainly, I didn't come across much of a variance, in fact I came across many videos explaining the difference in grip by applying adhesive to the back of the tile before laying. That gave me confidence, certainly after testing the strength that would ensure a longer lasting floor. Simply the back buttered tiles needed leverage such as a crow bar to get back up immediately after laying whereas unbuttered they could simply be lifted. Without you tube I wouldn't have realised that. So whilst I'm sure there are a few bad videos out there I would say that if you do enough research you can't go far wrong.
I've done a lot of DIY with the help of the net and have yet to get advice which I later find out to be bad.