Replying to Boot struggles

I cannot get boots to fit. I have tried a ton of different boots but my dalbello mv cabrio 130s in a 26.5 smash and turn my toes purple while still having to crank the middle down to feel snug. I have had shims put into the cabrios to give my toes more room and it doesn't work. I'm back to using my old dalbello pantera 130s 26.5 that feel like a bucket with all the buckles cranked. I tried on some atomic primes 27.5 that have way better heel hold but feel too roomy at the toe. I have been sized by a fitter as a 27.5 but I'm getting mixed messages from the boots I've been using. Do I need a custom fit or is there a boot like a phaenom that would be good for wide feet and toes while having a performance fit?