205 vs 225 15" tires for the track

[tmontague]

Has anyone on here run 225 wide slicks compared to 205 and if so, was there a large difference?

I am currently setting up my tire choice and size for next season and it is down to 2 tires that have limited sizes:

first choice - Nankang AR-1 (only available in 205 wide)
second choice and more $ - Toyo r888r in 225

Idealy the AR-1's would be available in 225 width but they are sold out everywhere it seems but a local shop (garage16) has them in 205. The AR-1's are a slightly cheaper tire and the 205 would run me $220 less than the 225 wide r888r. Based on my track time, these tires would likely run me 2 seasons, so this is a choice I don't mind spending the extra $200 on for a wider tire if it make a difference.

My DD'r tires could then be swapped onto my 7"wide +24 6ul's, and my new track tires would go from their current 205 to a 225 and be installed on my 7.5" wide +35 hypergrams. This would be a solid set up and although it would require more fender rolling, if it gives more grip I'd be inclined to do it.

TL;DR is a 225 wide slick on a 7.5" rim noticeably stickier than a 205 wide slick on a 7" rim?