[Closed] Superstar chain guide advice

Currently running single Middleburn chainring with 10 speed cassette 11-36. Brilliant for 90% of the time. Using a Paul Chain Keeper, nice simple top guide, and 36 tooth ring. For proper off road stuff I am going to fit a 32 tooth ring and this will make the chain more loose. If I regularly swap between 32 and 36 tooth rings then I'm thinking best chain tensioning solution would be something with a top and bottom guide, adjustable for ring size. Am thinking of Superstar Plasma guide. Does anyone have experience and a view on this versus others, such as E13 or MRP equivalents. Or anything else for that matter that I may not have thought have. Superstar obviously takes it on price (£40 versus about a ton!).Thanks for your help.