I thought this slot car malarky would be simple when I started a few months ago! Long story short. Bought my kids some scalextric a few months ago - they're bored of it & I'm hooked! Quickly realised with a growing track & multiple cars (mix of newer cars, some with some with out magnets but mostly older stuff without) some better controllers would be good. Bought a pair of DS 35 ohm controllers off the Bay. They were much better. Worked well for some cars but still too sensitive for others. Should I buy further controllers with 55 ohm or 45 ohm or would I need both the more cars I bought - hmmm. In the end I went for a pair of Truspeed BP II thinking that a single pair of controllers with adjustable sensitivity would be the answer & sold the DS 35 ohm whilst I was waiting for them to arrive. Wow, they look & feel beautiful but to my dismay even when the sensitivity is dialed right down they are way too sensitive for the cars & track I have. So the question is what would you do - sell the Truspeed & go for multiple controllers or go down the variable power route & keep the Truspeeds? Currently using a sport power base with 2 adaptors. Seen a Philip Harris power supply with 0 - 12V A/C output that I presume I could plug straight into the power base (using the plug off the Hornby c912 adaptor) on the Bay for £35 (cheaper than buying a load more controllers). Of note my track has to be assembled & dismantled every few days & my 7 & 9 YO also use the track. It's usually 10 - 15 mts & often very twisty rally style. Thanks!