In 2010 the SNP won six seats and some of them are now Tory.

For those of us in Wales  who longingly look at the dominance of the SNP throughout Scotland, it may be that we should realise that only 10 year ago they held  only six seats in the UK Parliament and even mote so in what was a landslide in Scotland some of their original seats are now held by the Tories

Banff and Buchan Alex Salmond's old seat for instance

2010 general election: Banff and Buchan^[13]

Party		Candidate	Votes	%	±
	SNP	Eilidh Whiteford	15,868	41.3	−9.9
	Conservative	Jimmy Buchan	11,841	30.8	+11.4
	Labour	Glen Reynolds	5,382	14.0	+2.0
	Liberal Democrats	Galen Milne	4,365	11.3	−2.0
	BNP	Richard Payne	1,010	2.6	N/A
Majority			4,027	12.5	-19.3
Turnout			38,466	59.8	+3.2
	SNP hold

2019 general election: Banff and Buchan ^[7]

Party		Candidate	Votes	%	±
	Conservative	David Duguid	21,182	50.1	+2.2
	SNP	Paul Robertson	17,064	40.4	+1.3
	Liberal Democrats	Alison Smith	2,280	5.4	+1.9
	Labour	Brian Balcombe	1,734	4.1	-5.3
Majority			4,118	9.7	+0.8
Turnout			42,356	63.4	+1.8
	Conservative hold		Swin

And Moray

General election 2015: Moray^[6][7]

Party		Candidate	Votes	%	±
	SNP	Angus Robertson	24,384	49.5	+9.8
	Conservative	Douglas Ross	15,319	31.1	+5.0
	Labour	Sean Morton	4,898	9.9	−7.1
	UKIP	Robert Scorer	1,939	3.9	+1.3
	Liberal Democrats	Jamie Paterson	1,395	2.8	−11.7
	Scottish Green	James MacKessack-Leitch	1,345	2.7	N/A
Majority			9,065	18.4	+4.8
Turnout			49,280	68.7	+6.5
	SNP hold		Swing	+2.4

General election 2019: Moray^[4]

Party		Candidate	Votes	%	±
	Conservative	Douglas Ross	22,112	45.3	-2.3
	SNP	Laura Mitchell	21,599	44.2	+5.4
	Labour	Jo Kirby	2,432	5.0	-6.0
	Liberal Democrats	Fiona Campbell-Trevor	2,269	4.6	+2.4
	UKIP	Rob Scorer	413	0.8	+0.8
Majority			413	1.1	-7.6
Turnout
	Conservative hold		Swing

Today the shift has gone from the old strongholds where the SNP benefited not only  from a traditional Independence culture but also an Anti-Tory Vote to  the former Labour Strongholds  like  Glasgow North East

General election 2010: Glasgow North East^[12][13][14]

Party		Candidate	Votes	%	±
	Labour	Willie Bain	20,100	68.3	N/A
	SNP	Billy McAllister	4,158	14.1	-3.6
	Liberal Democrats	Eileen Baxendale	2,262	7.7	N/A
	Conservative	Ruth Davidson	1,569	5.3	N/A
	BNP	Walter Hamilton	798	2.7	-0.5
	TUSC	Graham Campbell	187	0.6	N/A
	Scottish Socialist	Kevin McVey	179	0.6	-4.3
	Socialist Labour	Jim Berrington	156	0.5	-13.7
Majority			15,942	54.2	+18.5
Turnout			29,409	49.1	+3.3
	Labour gain from Speaker		Swing	+7.4

General election 2019: Glasgow North East^[5]

Party		Candidate	Votes	%	±
	SNP	Anne McLaughlin	15,911	46.9	+4.7
	Labour Co-op	Paul Sweeney	13,363	39.2	-3.5
	Conservative	Lauren Bennie	3,558	10.5	-2.4
	Liberal Democrats	Nicolas Moohan	1,039	3.2	+1.2
Majority			2,458	7.2	N/A
Turnout			33,925	55.5	+2.5
	SNP gain from Labour Co-op		Swing	4.74%

To Edingburgh South West, where Joanna Cherry  who was one of the biggest thorn ui Boris Johnson's side in the last election solidified her postion.

General election 2010: Edinburgh South West^[12]

Party		Candidate	Votes	%	±
	Labour	Alistair Darling	19,473	42.8	3.0
	Conservative	Jason Rust	11,026	24.3	1.0
	Liberal Democrats	Tim McKay	8,194	18.0	3.1
	SNP	Kaukab Stewart	5,530	12.2	1.6
	Scottish Green	Clare Cooney	872	1.9	1.6
	Scottish Socialist	Colin Fox	319	0.7	0.6
	Communist League	Caroline Bellamy	48	0.1	n/a
Majority			8,447	18.6	2.1
Turnout			45,462	68.5	3.5
	Labour hold		Swing	1.0

General Election 2019: Edinburgh South West^[2]

Party		Candidate	Votes	%	±
	SNP	Joanna Cherry	24,830	47.6	12.0
	Conservative	Callum Laidlaw	12,848	24.6	8.7
	Labour	Sophie Cooke	7,478	14.3	12.4
	Liberal Democrats	Tom Inglis	4,971	9.5	5.2
	Scottish Green	Ben Parker	1,265	2.4	n/a
	Brexit Party	David Ballantine	625	1.2	n/a
	SDP	Mev Brown	114	0.2	n/a
Majority			11.982	23.0	+20.8
Turnout			52,112	70.9	1.5
	SNP hold		Swing	10.4

So when we consider the likes of Ynys Môn falling to a Tory parachuted into the island from London it could be that Plaid should seek to emulate the SNP who if they had entered  Friday's election with only the seats they won in 2010 could have less seats than Plaid, in realising  that they need to break Labour dominance  in the industrial heartlands.

The 2021 Senedd election will be vital for Plaid if it aims to follow the SNP success.

Wales may be more than a generation behind Scotland in the desire for Independence , but the potential to catch up in less than that is there.