I bought these skins to put on some 1970's vintage fibreglass LPs and have had great feedback. I soaked them for 8 hours, and followed the LP conga reskinning video on YouTube - the advice to leave 3/4" between the playing surface and the rim (I have cuban/traditional style rims so need playing clearance) was a useful guide, and left me with smart looking playable drums.
I chose the 20" heads to give me enough skin to work with. This might have been a happy accident because the thickness worked out just right. I don't know if the Quinto and Tumba heads are different thicknesses. If I was to buy again, I think I'd still choose these.
