I haven't used MDL clutches, so really can't comment on them, but have seen a number of folks comment that the were working well for them.
I used the McLeod B&B pressure plates for years, and their' most aggressive disc which still has marcel. Aside from the heavy pedal, they were very streetable and held up to high power levels. Just have to make sure your linkage is up to snuff.
Some that do a lot of stop & go would comment they were 'too heavy' on pedal psi, but I never seemed to mind, and I would commute in Wash DC stop and go traffic for years.
I have used some of the Weber setups, they were not 'bad', but due to my power levels, I always had to step up to more aggressive setups.
What manufacturers list as 'power levels' or 'applications' for 'performance' apps usually don't measure up to what I experienced in actual use, and others found that to be true too. So because of that, I still use the same approach for all my apps with selecting the most aggressive setups where the disc still has marcel.
You can look at what the diff is here on levels of SPEC clutch offerings:
https://specclutch.com/products/#performance-clutches
The last 2 clutch setups I used/recommended were Stage 3+, but could probably get away with 2+ in most applications. The added cost of the 2+ over the base 2 is like $25, so the step up seems worth it.
When searching for a clutch where an application is required, I usually use a 1970 GTO with a 455 as the app.
The nice thing about SPEC on their' PPs is that they use a 'flat finger' design, so there's even pedal psi over the entire range from rest to disengagement. Most legacy design PPs with the raised fingers have the typical nose-over pedal feel, and that design is more susceptible to hanging at RPM.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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